I have a friend with a hyundai from 2012, last year it chucked a rod out the side at 100k miles. They got lucky and it was covered by the lawsuit, so they got a new engine for free. His wife wasn't happy when he told her, "you'll have this car another 10 years since it has a new engine!"
My ex wife has a 13 Tucson. At 87k (4 years ago) it gained a rod knock. The dealer balked on the warrantee until I pointed out that literally every other model with that engine was under a recall for engine failure. They did take good care of us as far as the replacement and rental but I was really sad a motor would go that fast with 3k mile oil changes and normal use. And yes. The new motor dictated keeping it for another 10 years.
@nicholasmoen1000 it's a real shame companies would rather deny, deny, deny to avoid paying in the short term, when really, by going along and replacing an engine, they are much more likely to get a return customer from the good service and being taken care of.
😂same happened with my girlfriend. Hers was replaced at 98k. She's now at 240k miles and ready to get a new car. I said it still has another 100k to go. Lol
@@ChrisKuwait My girlfriends mom has one in her 2013 Hyundai with 230k on the OG engine and has had timing chain noise for 6 years, still going. Blows my mind.
As a blind mechanic, I'd like to say how nice it is to listen to you. Cracking head bolts, speeded up soud, slowed down sound..... "PENATRATOR" Are much appreciated!
@@dragonbutt no, but I did have the fortunate chance to own a 64 Imperial , 413 wedge, 4bbl, push button tranny, weighing about 4 tons...lol😁 Weight = time....fun car !
I have a 2014 Hyundai Santa Fe 2.0T that I changed the oil in every 5000 km or so. Always. Never ran the engine low on oil, that engine was always treated like a king. It spun a bearing on cylinder #1 at ~106000 km this summer one day when getting on the highway. I'm lucky that I had documents for a few of the recent oil changes because Hyundai Canada replaced the engine under the extended warranty (due to the machining cleaning issues/class action lawsuit). If an engine that is treated perfectly fine can die like this, I have zero faith in ever buying another Hyundai again.
@@inboundbryguy I had the last one and like 1 or 2 more before that. I was actually surprised that they covered it, I thought I was done for. I hadn't kept that many receipts as I didn't know that they extended the warranty to 10 years 200,000km. It helps that the engine was pristine inside (as it well should have been) and had no other issues.
I forgot to mention, I had to pay the dealership $800+ CAD in "diagnosis" (it's knocking clear as day, what more do you want?) and to tear down the engine for evidence & pictures to send to Hyundai Canada :( I was out that amount and I should likely be fighting Hyundai Canada for it, but I honestly don't want to deal with Hyundai ever again. I'll consider myself lucky as the engine replacement quotes were north of $8000+ CAD.
Long time Kia dealer tech here. Before the lawauits and the KSDS update, we saw plenty of engines with this level of damage, and greater. The update more closely scrutinizes the knock signal and puts the engine into limp mode (
@Moondoggy1941 it took 2.5 days from diagnosis to pick it up with new engine installed. Just had it done 2 weeks ago. Had 85 thou on car , started knocking out of the blue. Changed oil relig every 3000 Miles. Thank God for warranty from kia. Was a 2015 sorento
@@thomasjensen5237 Mine was over a month, but we got a rental so I did not care either way. I am going in for my first oil change since the repair, it will go the dealer for now on. Religiously.
I think we can safely say that every engine that has an internal water pump driven by the timing chain (Chrysler 2.7, Ford 3.5, Hyundai 2.4) is essentially a ticking time bomb. Very bad design by the engineers!
@@samarch2189 at least Hyundai is covering the failures. Chrysler basically blamed all of their own customers for "deferred maintenance" when the early 2.7's blew up at 60k miles, and somehow they managed to win out on all of the class action suits. The later ones used a much more robust water pump to stop the failures.
My favorite part of your videos are always the end when you wrap everything and have almost a heart to heart discussion with the audience. It reminds me of 80’s-90’s shows.
If I'm remembering correctly, Hyundai admitted as part of the lawsuit that these were manufactured for years with metal shavings left in the oil passages. So forbidden glitter from the factory, very thoughtful. EDIT: This is the earlier version of the Theta II that didn't have that problem.
If so, and on the crank drilling for that one bearing only, it would have died a long time before this happened. Chew up a bearing, major damage at first startup and then go 100,000+?
We own a 2017 Sonata with this engine. It started burning a lot of oil before 85k miles. Our local dealership did their 1000 mile oil burning tests on the engine and once they were done had a new engine approved the very next day. I have to say Hyundai did a great job in honoring their warranty. Now I am guessing they knew they really had no choice. LOL
My gf is just now doing the consumption test and it burned like 1.14 quarts in 1K miles. They are going to do the “Compression cleanout” thing and then probably new motor. This thing sucks down the oil and knocks horribly. Last Hyundai for us.
I used to tow cars. I towed these (and Subaru’s) ALL the time for blown engines. The dealerships were always packed full of Hyundais waiting for a new engine.
@@bradhaines3142Don't listen to the Subaru fans. The 18+ cars are pretty reliable again, but Subaru went through a really rough decade before that. Lots of bad engine/trans internals, turbos, cooling systems, wheel bearings, air conditioning and electrical systems. Seriously Chrysler tier for a while there.
I was one of the lucky ones. My Sportage got the rod knock at 99K miles, and had a local mechanic verify it. Then called the closest Kia dealer, and they had us tow it in and verified its a rod knock that was covered by warranty. They did give us a new longblock with no out-of-pocket costs, but it took three months because in their words "they had nine cars ahead of us".
So glad someone else covered this! I’ve been covering these engines helping people get them replaced for 4 years now! Worst engine ever made! I wrote a book for anyone who wants help getting theirs replaced!
I'm a warranty inspector and see these, probably 3 a month, more sometimes. I notice that it's almost always rod #3, either spins or seizes. I have a theory that it has something to do with the thrust bearing. Either too much clearance behind the bearing, or something to do with the drilling there, but changes delivery to the #3 bearin. , But that really doesn't explain why #4 doesn't suffer this fate equally, if not more. Talked to several techs and they think it possibly could be something along those lines. That dual oil pump is otherwise phenomenal to have, but somehow just doesn't negate this oil-related issue. Great video!!!
My 2014 Hyundai Sonata Hybrid blew its engine at about 133k miles due to the rod knocking issue. I babied that engine changing oil every 5k and spark plugs at 100k, but it didn't matter in the end. Fortunately I had the KSDS update done earlier that year and maintained oil change records, so Hyundai is replacing the engine under warranty. Thanks for the teardown. Very informative!
@@ethanhoff7772 They did not ask for any oil change receipts. I got my oil changed at places that reported vehicle service history to Carfax, so that may have had something to do with it. But if push came to shove, I have receipts going back to when I bought the car at 27k.
@@ethanhoff7772I change mine myself and do not keep records. As far as I can tell, a mechanic will notice if oil wasn’t changed adequately. However they also have horrible oil burning issues so it may not matter if you change it or not.
My parents are going through this with Kia as we speak. Got the extended warranty to 200k. Engine blown and now they are coming up with every excuse under the sun to not replace the engine. And now they are trying to charge over 15k to get it fixed. All service records are in order as well and have been fighting with them over a year. Word to the wise, don't buy Kia/Hyundai junk, not worth the headache.
God bless you man, and happy Thanksgiving to you and your family. Even as a mechanic I never really get to tear down engines in the same way. I appreciate all you do and all you try to teach to people who want to learn how their engines work. Keep it up, we are all rooting for you.
Thank you for doing this engine, my wife’s 2018 Santa Fe sport just got a brand new engine after 80k and burning over 1.5 quarts every 1000 miles. This is after 6 months of battling the dealership but it was eventually covered. The thing that I found out is that these cars do not have an engine low oil sensor (my 21 year old bmw will tell me the oil is 1qt low with a caution light). Also that Hyundai specs their engines so that if it burns 1qt per 1000 miles driven its is within specs. The oil system is 5 quarts and Hyundai recommends oil changes every 7500 miles. this is the reason for the lawsuit. The only and first indication you have that the oil is low is the oil pressure low warning light which she got driving to work and when I checked the oil after about 3000 miles from her last change the dipstick came out dry... First and last hyundai/kia we buy.
my sons 2017 sonata uses like a qt/qt.5 each month. dealer says rings are stuck. my extended warranty wont cover stuck rings only broken rings. so he has to check his oil when he gets gas and keeps a 5 qt jug off oil in the trunk.
My 20 year old BMW will warn you about low oil as well, and it'll actually burn a fusible link and shut the engine down in a prolonged low oil situation. I presume that this is both to protect the engine from people ignoring the warning light and necessitates a trip to the dealer to investigate why the oil got low.
as someone who worked at a hyundai dealer these things where EVERYWHERE with the same exact holes on that engine you got. esp the hybrid versions idk why but the hybrids always went earlier then the non hybrid cars but they would all have the same falure area and have a nice viewing port into the engine. most of the time we would have the people driving them in like that having "lack of power" or "noisy when running" it was crazy to see them things in that state driving in
My 2016 Sonata engine had this type of breakdown in May of 2024 after the car had 100100 miles. Naples Hyundai dealer replace engine at no charge within two weeks! Outstanding service and product support from Hyundai (they even paid for the cost of the car rental during service).
Thank you again for all you do! I might suggest a tiny correction, the Thanksgiving day North America, in the United States occurs later in the year, because in Canada, the growing season is much shorter, and celebrating the harvest occurs sooner. This year, our Thanksgiving was October 9th. A Blessed Thanksgiving to all!
Have a 2013 Sportage with the 2.4 Theta GDI. It never saw more than 5,000 miles before another full synthetic oil change and fresh filter. It seized up (rod bearing of course) cruising on the highway at 89,000 miles and with 6 months remaining on the Kia original owner's 10-year warranty. The dealership and Kia honored the warranty so the otherwise great little SUV now has a new Kia rebuilt engine and the knock sensor hardware and software retrofits. You definitely got it right: the rod bearings in this engine are simply under-engineered size-wise. Hopefully, Kia is now using more advanced materials in its rod bearings for these rebuilds; if they're not, they're crazy since our new engine is under warranty until the Second Coming. The car is great, and the engine has always been very smooth running. After seeing that balance cartridge, I can see why. Your videos are splendidly informative btw; the way you tear down these engines is very purposeful, methodical, and instructive. The way you treat water pumps is another matter, however. I'm surprised the ASPCP hasn't gotten on your case for that. LOL
I own a 2018 Kia Sportage LX with this engine. Purchased it used at 29k miles three years ago, now up to 88k. Replaced the knock sensor harness and software update per the recall. Engine runs very smooth because I baby my cars. Mobile One Full Synthetic oil changed regularly at 5k miles or less. I also drive conservatively avoiding stomping on the pedal. Thank you for this teardown, very educational.
There are plenty of comments here suggesting that even well cared for H/K engines still blow up prematurely, i.e. poor design, poor metallurgy. You can do everything right, and they still grenade. I would stick with Japanese cars.
@@arcsound honestly as a former Hyundai dealer employee; it's all a matter of luck. We regularly had vehicles come through with 300-400k miles on trade I have pics of a first year Accent with 467k on the clock, rusted out (holla NE) but he drove it onto the lot and traded it. On the other hand Hyundai put in 15-20 engines for every one the Mazda shop replaced.
the older hyundai engines like the Alpha, Beta and Delta were great and rarely failed. Makes me sad to see Hyundai lost their way with these ones@@vinnys7514
@@vinnys7514 ivce had a maza for more then 22 years never had a problem and i did not treat that engine well ,, mazda makes good engines reliable engine in my opinion they rival toyota on reliability
My family leased a 2016 Sonata Limited with the 2.4, which I primarily drove from 2016-2019. Only put 45k on it, but during that whole time, engine was fine. I actually really liked it overall, great MPG AND a large fuel tank (18.5 gal), so ~600 mile range, great for long road trips (I prefer to stop for gas on my own terms). Heated & cooled seats, panoramic sunroof, quiet and comfortable. I was tempted to buy out the lease after and own it myself, but ended up buying a Lexus ISF instead. The ISF was great, but it's harsh ride and bad mileage made me kinda miss my old Sonata. Years later I talked to an uber driver who was driving me in that same gen Sonata and I said "isn't this car great?" And he was like "no, not at all, this engine has had a lot of problems!" I was shocked. It was after that I learned how problematic these engines are. Safe to say I have no interest in owning a car with this engine (or even any Hyundai/Kia) again!
I find it literally hilarious that you were considering a Sonata, then you decided to get an ISF instead. That’s equivalent of looking at buying a Jetta, but settling on an M3 instead.
@@carsorsomethingidk I had two paths: quiet, efficient, comfortable, or a reliable V8 beast. I chose the latter. After driving 4 cylinders almost exclusively for 9 years, I needed to have power on tap.
It only takes a certain percentage of engines of the pile can ruin the brand. Especially the percentage are high in this case. Then you got a couple of lucky good ones that escaped that problem.
Years ago I worked with an Engineer who was the son of a Honda dealership owner. His fathers mantra was "oill is cheeper than overhaul". You channel should be required viewing for people who drive and own cars. We all need to be reminded that opening the hood and checking things is essential for engine life.
Happy Thanksgiving from Australia Eric, we don't do Thanksgiving here but I'm grateful for you and your channel - I look forward to your videos every Sunday (which is when they come out here). This is a great bonus. All the best to you and the family.
The contrast in wear between the main bearings and the connecting rod bearings seem to reinforce Eric's idea that the con-rod bearings aren't designed to handle the load and wear.
The fault was swarf left in the crank after manufacturing, so the metal shavings were forced into the big end bearings the moment it was first started. And that's where it stayed until the bearings were trashed.
I agree mine blew up at 150k km when I was flooring it on the highway the rpm went to the highest and suddenly engine was off and all the dash lights were on ( I was cruising at 90 mph when it happened 😂). The thing is before this I stopped at a gas station and the engine was completely fine standing next to it, it was so quiet that I thought the engine was off. So I refused to believe metal shavings were floating around and suddenly decided to destroy the engine after 6 years and 150k 😂.
Love these teardowns. Its fascinating how these different manufacturers solve the same problems and create others. If you ever have the time I would love to see (and i believe others would agree) a montage video of just cracking loose head and cam cap bolts. Keep up the great work and Happy Thanksgiving.
Perhaps ranked in order from being able to undo the bolts with a crescent, through to needing a 2 metre extension, and the bar bends while extracting the bolts?
Had a Santa Fe with the 2.0T Theta II that blew up at 31k while coasting down a hill a few years ago. Had it towed to the dealer and they had 34 cars waiting on engines! Took almost 6 weeks to get it repaired
sammcbride2464 it's maybe a bit complicated but by far not even slightly the most complicated. Those are just simple open oil pump gears, not even slightly difficult by today's standards. But I've seen some of Eric's videos where basically the oil pump is a fiendish monkey puzzle that once you pull it apart, it's never going to work again. I forget which engine it was, but when Eric gives up on even pulling something completely apart due to complexity and then admits that there's no way in hell it's ever going back together, let alone being an oil pump ever again, you know its complicated. I once owned a Telefunken German designed VCR that worked fantastically for about 6 years, but when it stopped working, the advice was - 'get a new VCR' The thing was made to work flawlessly for a certain lifespan, but after that, non repairable - because once pulled down it was never going back together - it was that intricate and involved. Similar thing with some of Eric's pull downs on oil pumps. A Hyundai is not complicated and actually really simple. Especially when you compare it to this. An Audi S6 5.2 litre V10, that is totally trashed. Not really a complicated oil pump (and I still want to find the engine that has the most comically over-complicated oil pump I've ever seen on this channel), but the rest of this Audi is mind bendingly over-the- top-complicated, and I was actually laughing at how silly it is. And the damage........man that's even more fun! lol 😆 th-cam.com/video/AMj5bIRqiLE/w-d-xo.html
If your talking about the balance shaft thats not the oil pump. balance shafts are pretty standard in a modern engine. Im assuming you were talking about the balance shaft cause the oil pump on these is extremely basic.
@@sambeagle72 I am used to a balance shaft. Many engines I have taken apart have them, but they are a simple geared shaft that needs to be timed to the crank. I am talking about the integration in this specific video of what seems to be the balance shaft integrated into the oil pump assembly. I have not seen it that way. The balance shaft is normally orthogonal of the oil pump and you can replace an oil pump without having to deal with it.
So my understanding is their is a small piston pressure regulator on the oil pump housing that will start to jam from small debris the that get by the filter. I suspect that over time the pressure starts to drop but not quite enough to illuminate the oil pressure warning light. Combine this with oil consumption and the general public not checking their oil level as religiously is a recipe for disaster.
Happy thanksgiving to you and all the other gear heads watching. My dad just sold his crown vic with 385k miles and it still ran pretty good but was rusting out in the rear end. It would be really cool to see more high mile stuff and how they wear over time. Thanks for these, i want to do this for a living now.
Thank you so much for this wonderful teardown. One of my family members had a Kia which probably did have this engine. I do not know the entire story but I think the engine on that vehicle failed catastrophically. I believe the relative kept up all required services but I must ask about that in more detail. This video is really helpful to me in understanding what might have happened to the other person's vehicle. Thank you so much for giving us the water pump skit! I love it! I especially like the heartbroken look on the guy's face as he knelt over the broken pump.
I guess I have an anomaly. I have a 2011 Kia Optima 2.4 GDI Theta motor. Bought brand new now has 170k. Does not burn oil, compression test last nov has all cylinders at 175 or above. Checked the 2 small screens(can’t remember the name) on the front either side of the valve covers. Zero indication of metal filings. I use synth oil changed every 5k religiously. No metal in oil or filter. I ask for the filter so I can open it up to check myself. And I don’t drive like a crazy person. Very happy with the car. Gets 40-45mpg on highway. We have only had one issue. Battery drain over a few days. Turned out to be the fuse box under dash on the drivers side. But we also maintain this car probably better than most people. Cheers
Honda just announced a rod bearing recall on recent J motors. But BMW would just call this kind of thing normal wear items. That said, though, I had a BMW/Mini w a B38 that actually had a stop sale/recall on a main bearing. I find it remarkable that something as old-tech and fundamental as plain bearings still have regular design/defect issues in this century.
The difference is BMW replaces them via recall other than the S85/S65. Kia denies, tries to blame owners for years until class action suits were launched.
Over the last couple years I've seen these cars lined up at the local dealer service dept waiting for engine replacement. It has to be costing Hyundai a ton of money in warranty and "good will" repairs. Looking at the parts it's a pretty generic design but subtle problems can lead to big trouble. We've been building engines like this for 100 yrs but "lessons learned" get forgotten as experienced folks get retired.
I've had 4 Hyundai/kia vehicles starting in 2005, and now a 2021 K5 GT LINE. Never had any engine issues, fortunately never had this engine. The cars over all were super reliable, no EXPENSIVE repairs, all kept till around 120.000 miles when sold. I keep buying them because I've always had a great experience with them. The K5 is a very nice vehicle. Thanks for the THANKSGIVING DAY TREAT!
@@stevenweiss2148 you got lucky then. I'm on a FB forum page, and every single day people tell their stories of how even new ones with less than 20k miles and the engine has blown... I joined in Jan with 4500 members, now the group has over 18k. The so called best warranty is crap when the manufacturer denies your claim for some bs item
When I was in service at Kia they said it was #3 that would not get enough oil and throw a rod. This seems to match with what I was told for sure. Cool video
Thanks for being one of the rare US-based TH-camrs that recognise that 96% of the global population doesn't live in the US! I always enjoy your videos. I know you don't 'do' EVs but another entry in the Hyundai disaster catalog are the simple 2-stage gear reducers used their earlier EVs that sometimes develop tapping noises. It took me a year to realise that the cause is simply that the particle magnet was not secured in place rigidily but allowed to rattle around in a pocket under influence of the oil flow. It collects particles, wears them down then releases them back into the oil. 5 years later Hyundai have still not figured this out.
The 2008 Hyundai Sonata was the most-reliable rated by Consumer Reports in Sonata's entire history. It's all downhill since. Theta II engine came out for 2009 model, and the 4-speed auto transmission made by Mitsubishi was replaced with 5-speed auto made by Hyundai.
Great video, had personal experience with this engine. Bought a 2011 Sorento in 2015 with 50k miles. Put on another 70k miles and changed the oil every 3500 - 5000 miles. Replaced steering rack under warranty and never had any other problems with it. At 120,000 miles we gave it to our youngest son when he moved to Florida. Just after Christmas 2022, while driving from VA to FL, the engine when BANG, but he managed to nurse it home 600 miles to FL. He got a new engine under warranty. I must say KIA stands by its products. Other than the offending connecting rod, I'm impressed with the lack of wear in the internals. Would be interesting to see if oil gallery to the #3 con rod bearing was blocked. Good to see that KIA uses a steel timing chain. Subaru engines have interference valves and are notorious for bending them when the rubber timing belt breaks.
2010 and earlier had timing belts. As long as you know how to change them which I do they are great motors. I stopped to help a driver of a 2014 Elantra. He needed a jump start. I got him running and his motor sounded terrible. Asked him if it had oil in it. I checked it from him. My 2006 elantra with 150000 miles on it sounded quiet. His sounded like piston slap. I told him to put heavier oil in it and sell it to someone else!.
I'm a Kia tech. These engines burn oil all the time from the valves, causing us to do oil consumption checks ever 1k miles and they fail the check 95% of the time. After 3 checks, if they fail all 3, new motor. There's literally a nation wide recall on these motors to have them replaced because they are so bad. We replace at least 4 a week. Valve cover gasket issues are also common causing oil leaks. I've been waiting for this video lol. I've seen these being replaced before 10k because of oil consumption issues. When I mean it's every one, it's every single 2.4. Oil changes on these are always fun, because most the time not even a quart drains from them.
Thats crazy man. I own a 2015 optima with this engine. Bought the thing used with 33k miles and now at 85,700. I have always changed engine oil regularly and done other maintenance myself. My engine does not consume or burn any oil. I check that regularly.
I have also pulled my valve cover twice. First time I wanted to just check for wear and anything that might be wrong. The valve cover gasket looked so good I just stuck it back on after my check even though I knew that was a bad idea. I kept a close eye on it for leaks and there weren’t any. 18 months or so later I replaced the valve cover and fuel pump gaskets and the cams still look just fine. Those old gaskets were very brittle though.
@@Lighting21159 sorry I'm getting back so late, but those motors haven't had any bad issues yet or reports of problems. I like them, not a lot of power but they are enough for the Kia K5 and Hyundai Konas. I think they are in the sonatas too. Only thing I've seen go bad on them was literally just a coil pack. Just keep up with oil changes every 4-5k miles. I've seen so many with over 100k on them
The wife's 2012 Tuscon had lower end rod knock. Took 4 months to get it back and they covered the rental car. Was at 95K, oil was clean (I do my own oil changes religiously) and didn't have receipts other than possibly what Autozone might have. Overall, I was very pleased at how they honored the warranty. Was on a trip when it happened, and due to the time of night, one of the employees took us to an airport to catch the rental car company 10 minutes before it closed. They knew they couldn't fool me, as I diagnosed it for them. It was making a LOT of noise! Told the wife she's lucky... 5K before the engine warranty ran out, and now she has an extended warranty.
i’m a master tech at kia and will tell you i replace atleast 4 a week for free on cars with this engine. couple factors are at play lack of proper maintenance, rod bearing sizing faulty/ direct injection engines have the worst issues by far/ to give an example i just had a 21 with the 2.4 come in that had 50k miles this week had a oil change at 20k miles and then its second one at 49k miles. engine began to knock at 50k and they are suprised they aren’t getting an engine under warranty… i also believe there is an issue with the oil pump they have for the 4 cylinders due tot he fact most failures i see are with the very last rod bearing getting improper lubrication
I work on them to. One of the main issues I think is the earlier theta engines where manufactured poorly and the oil passages wasn't clean properly. The later years and the replacement engines mainly have a oil consumption and they burn oil so bad that it goes low on oil too many times and then it blows. But also doesn't help that some people don't change the oil making it worse. The main thing is Hyundai should of changed their piston ring and oil control ring design.
@@rushking19 forgot to mention this, you are spot on. rings have such low tension that if you don’t keep up on those oil changes you will get clogged control rings and then the oil burning leads to the seized engines/knocking unfortantely
This engine ruined my buddy's life. Metal in oil at 115k. No help from Hyundai. 6k for replacement. Had to start double shifting at work to make ends meet.
I have a 2014 Hyundai Sonata GLS w/2.4 engine. We have taken very good care of the engine since we got it used at 8k miles. Engine blew up at 96k miles. Took it to the dealer and since oil was full and clean (except for some forbidden glitter) the engine was replaced, no questions asked. We now have an engine with a lifetime warranty.
Wow... this one hits home... and on Turkey day.. how did you know... I am stranded in Blueridge Georgia and couldn't get back to Knoxville Tennessee for Thanksgiving.. Very sad day..with metal shrapnel everwhere and holes in the block.. Now I have a hole in my heart..broken..
I work on these cars everyday. No matter how good the 2.4s are taken care of, they always burn oil. And yes Eric is absolutely correct, we have engine cars that have been waiting for months. It is virtually impossible to get these engines in. Quick edit: Hyundai only approves engines if they burn more than 1 qt. of oil every 1000 miles.
Waiting for months? Can't get the engines? Best news I've heard about these p.o.s. in awhile. Hopefully these waiting for the next 4 piston granade people will get some religion and move on to a more reliable brand.
Lol, I have a 2009 Kia Rondo with the 2.4 Theta engine and it's never used any oil between 5,000 mile oil changes with 170,000 miles on the clock. That engine he tore down was not a Theta 2 engine as it wasn't direct injection.
@@vegasfordguy Hyundai produced a non GDI Theta 2 engine prior to converting cars to GDI. My understanding it was only the GDI engines that had the problems (as they changed production methods for the GDI engines). I have a early 2009 Hyundai Sonata with a non GDI engine that has over 300,000 miles on it and it does not burn any more oil than when it was new and runs great. I have used Mobile 1 since about 5000 miles.
My understanding it was only the GDI engines that had the problems (as they changed production methods for the GDI engines). I have a early 2009 Hyundai Sonata with a non GDI Theta II engine that has over 300,000 miles on it and it does not burn any more oil than when it was new and runs great. I have used Mobile 1 since about 5000 miles. Note that internet research shows that the GDI Theta II engines were used in last few months of 2009 Hyundai Sonata production. I know several other people with non-GDI Theta II engines who also have tons of miles with no or very little oil consumption (not everyone I know uses synthetic oil).
I've got the same non DI engine in my 2012 Tuscon. 221k on it. Burns a quart between the 5k mile oil changes and sounds like a 3 cyl. Kubota on cold start, but she's still running strong. Gets quiet after it warms up. And it sees WOT multiple times a day. I was hoping to bring it up to you Eric for a tear down once she quits, but I hope to get a lot more miles out of it first.
Thanks Eric! My mother loaned me her 2013 Sonata a couple years ago. The engine let go while I was doing some...ahem...mildly spirited driving around town. It took the local Hyundai dealership 8 months to get a replacement engine. The good news, is they gave her a free loaner car for that whole time XD
*I bought a used 2011 Hyundai Sonata* back in 2016 with 106k miles from auction for $5000. Two years later in 2017 with 130k miles, the engine locked up. *Local Hyundai dealership replaced the engine block with a brand new one for free due to a recall,* no questions were asked. They even gave me a loaner car. *Now in 2023 the car has 230k miles on the dash and driving great so I’m happy with Hyundai* and would gladly buy another one.
I own a 2012 Sorento with that engine; 103,150+ miles on it. Trusting my LORD for it to keep going. I perform oil changes every 5,000k/6 months (full synthetic). Keeping my hopes up!!! BTW, I love your sense of humor, dude!!
Mine started knocking at 112k before it blew. It started when I was really getting on it to pass a car. Once it's started knocking , it only made it another 50miles. My dealer gave me a new engine, but I still had to pay for sparkplugs, and oil $600. I won't touch Hyundai ever again though.
Global engines have landed in the Ford, Chevy, Chrysler as well as Hyundai / Kia line ups and probably nearly all Builders. Bad oil changes and debris left behind at the machine shop process were heavy hitters against the line up. There are even specialty tools for checking piston/ rod end play thru spark plug holes and required for warranty claim if the engine turns over. I enjoy your channel and Thank your for sharing.
Are you talking Global Engine Alliance? If you are, they were a joint venture between Mitsubishi, Chrysler and Hyundai. The issues experienced with Hyundai Theta and Theta 2 do not occur in Mitsubishi engines. Mitsubishi used a modified head design and bumped up the oil pump output. Well maintained Mitsubishi with this engine, will happily go over 500k kms without any issues. I also haven't heard of Chrysler engines, of this serie, having mechanical issues (plenty of electrical gremlins).
Excellent show of tear-down. I have the Hyundai 3.5L which is running ok at 160K miles and I hope it goes much more. After seeing your teardown and reading some comments, I would never want to own a Theta 2.4. Thank you.
There was a point and time where the Hyundai dealer by my work had rows and rows of these engines outside of the parts shipping door. Both cores and new engines. It was wild to look at.
My aunt has a 2017 kia sorento with the 2.4 engine. Has been very reliable. Another problem common on these (specially the 2.0) before 2016 are notorious from suffering oil starvation because of a garbage design oil pump, that has plastic gears and a tiny pickup tube). Most issues are found in engines made in hyunday/kia factory in alabama between 2011 and 2016.
My manager has a 2013 Kia Forte and I'm pretty sure it has this engine, he brought it into the dealership for a fire recall warranty, and not into 3 hours for the drive home and it starts knocking so he calls the dealership and they put a new engine in for him. I've always wondered what the dealership did during the fire recall that could've caused an engine failure.
I used the ATS chemical 505 cro oil system treatment in my 2014 Hyundai sonata 2.4L. As you know these cars are notorious for burning oil out the exhaust in the form of blue smoke. Since I did the treatment and changed my oil, my car went from 23-24 mpg to 28 mpg. I am now 800 miles into the fresh full synthetic oil change since the oil system treatment. I check the oil dipstick constantly. It has been 800 miles of driving and I have burnt no oil. I still have the same level on the dipstick, a smidge over the F dot on the dipstick. Before the oil system treatment, I was consuming at least a quart by this point, now I' am consuming no oil. I also experimented on my 2010 Hyundai accent gs with 176000 miles on it. It has burnt oil ever since I can remember, to the point where I had to add a few quarts between oil changes. I added 4 oz of marvel mystery oil to the crankcase and drove it for 200 miles and then changed the oil and filter. I have now clocked 700 miles since the oil change and the dipstick shows that it's still a bit above the F dot on the dipstick as well. I hope this information can help other people.
Happy Thanksgiving man! I absolutely love your water pump skits; i swear they cure my depression. lol. Also, absolute long shot, I'd love to see a tear down on an Subaru EA81 or EA82, had terrible luck out of those motors, there has to be at least one. EDIT: didn't specify make of engine.
Another great episode Eric!!; My guess is this engine has lubrication issues to the rod bearings... The main bearings probably survived quite well because they are the first bearings to be fed oil, then the oil is sent through the crank to the throws, where the volume & pressure is probably insufficient... I'm also thinking there are 2 oil pumps because 1 pump is for the top-end, and the other pump feeds the bottom-end...The notion of machining chips being lodged inside of the oil passages seem to make sense, because of the isolated damage this engine was subjected to... BTW , The suprano 'Alvin & the chipmunks' voice and the Low pitched 'droid' voice you use are quite funny... The low voice that mentioned the word 'violence' when you were taking the ballancer/oil pumps cartridge aoart; had me rolling, holding my gut when laughing so hard.. 😂
Can I ask you what is the main issue with the GFI? I have done carbon buildup maintenance and so far 100k miles after, it feels perfect. I'm starting to accept I would have to sell this sorento eventually. (G4KJ)
@@RafaelPernia carbon buildup is the main issue and if you are late on one or 2 oil changes ive seen damage occur they can do 100k easily yes but alot ive seen haven't made it past 80k
I love my '17 optima. 80k and not a single issue. The perfect appliance vehicle. With the lifetime engine warranty, I'll probably keep it another ten years.
I very much doubt if you'll get another five years let alone ten. But there's always the exceptions. Hopefully it keeps up, but 80,000 isn't really very much, whether in miles or kilometres. Time will tell
I worked at Kia from about 2010-2017 and we all got real good at beating book time on engine R&R. I've seen a few, including one my daughter owns, last over 200K on the original Theta II 2.4 and everyone used 5W-30 Synthetic and changed the oil about every 4-5K. Yes, they are a POS lightweight crappy designed throw away engine but thin 5W-20 isn't their friend and especially for people that go 10K on oil changes and forget to check it and add some every once in a while. My Daughter's has always since day one used about a quart of oil every 4K and that's how I know it's time to change it.
I have a 04 Hyundai Elantra with 435,000 miles, runs perfect, engine and trans never cracked open. It's a family spare car now. I retired it and what do I do with it? Who's going to buy a car with 435,000 miles? If anyone needs to use it, the key is in the ashtray.
They honestly look like a fairly well made engine and surprisingly not cheap. Seems to me more so they have a major Achilles heel or two that have gone sadly unaddressed.
Poking around on the phone and saw a new teardown mid-week. So exciting. Wife and kids have Seinfeld or The Office, some Netflix crap. Teardowns are the stuff of life. Thanks so much ! Keep it up! Happy Holidays all.
I think I read that these had issues with machining debris being left in the block and eventually blocking oil passages. That accounts for the inconsistent quality/lifespan.
Supposedly crank electrochemical deburring according to the articles I read just now. With their theft problems this has to be causing them huge sales issues.
Theta 2 GDI are soaking the combustion chamber at each cold start, to reduce carbon build up. This soaking gets unburnt gasoline to leak past rings and into the engine oil - you get oil dilution very quickly. That's why best is to use synthetic and replace the oil no later than 4-5000 miles especially if you drive mostly short distances when the oil doesn't have time to stay hot very long and evaporate the gasoline. Another issue is cruising near 1000 rpm which puts extra stress on the rod bearings, especially given the oil dilution and the short rods. Downshift and keep it above 1500 rpm as much as possible. Most engines seize either near 85k miles or near 135k miles, for some reason. KSDS update also has issues with false alarm and limp modes - the update has been revised several times. Another issue is false limp mode after a heavy rain drive or a car wash - water gets to knock sensor harness - let car dry 1-2 days, restart. Some engines also start using lots of oil: H is less helpful until the engine is seized or the rod bearings don't pass the test. Never buy used Theta 2 engines, never buy salvage title or car with a used engine (not installed by H): these cars are not covered by the engine warranty.
I don't believe this failure could be from machining shavings left behind, as many commenters seem to suggest. The oil goes through the main bearings before any of the rods, and would therefore have the same damage if that was the case. Something else is going on.
@@johnsnow1355 As a dealership employee, I've experienced literally a couple dozen instances where we did the maintenance by the book and the engine still failed.
@@iadr the best thing about the recall is the bearing clearance tool. That thing would be gold for checking out used engines so u know if the bearings are toast before purchasing
My 2011 Sonata (purchased in 2013) now have 212,000 kms. on its clock and I am still using it. Never had a mechanical issue, only 1 check engine light (loose gas cap) since owning my car. For as long as you check your oil at least once a week and topping of the oil level, you are good to go. I installed an Oil Catch can at 60,000 km., changing the oil every 5,000 kms. and using premium oil filter and synthetic oil will help its longevity. Just sharing my experience
Looks like saved bucks on frequent oil changes. ... Aand continued driving when the knock in #3 started occuring, otherwise there would be this discoloration at the crank.
My daughters 2.0T seized up at 69k miles and had great maintenance. Again seized with always full oil. Had to wait 10wks for a new long block install 100% covered. I think your right about the rod bearings too small. That was the only sign of significant wear in this engine, then knock knock to failure of the rod.
What's strange is this looks like a well made engine with a robust design. Strange they fail so frequently. Something is under engineered or a mistake was made somewhere. I'm sure with some light mods they could be quite good. Unfortunately, those light mods would require complete engine rebuilds.
I have owned 4 Hyundai vehicles. They all performed well until I got rid of them for a newer car. The first one was a 1997 Elantra that I got for my daughter. She had it for about 8 years until her husband drove it after the water pump failed at 140,000 miles. He drove it on the interstate until the engine seized. After it cooled off, surprisingly, it started up again, so he drove it again until it seized again. I went to pick it up the next time and looked under the hood. There was no water in it and the thermostat housing was melted away, but it still started up like new. I dissassembled the engine on top, saw burns on the cylinder walls where the piston rings were in contact when it seized. I ran a hone down each cylinder with the pistons still in it, cleaned the cylinders as best I could, got the head to a machine shop to plane it, reassembled it and got it running again. That's when I discovered the leaking water pump. So I changed that and it ran fine.I must admit that I changed oil with Mobile 1 full synthetic and Mobile 1 filter every 10K miles for my daughter because that is what the oil was rated for. Tolerances in these engines is super tight and there was no ridge at the top of the cylinders where the rings should have left ridges. The walls were so hard that the hone did not remove anything except for the black burnt stuff. Regardless of all that, it ran and did not burn oil or make any noises out of normal. The only reason I did it was out of curiosity regarding the Hyundai product and the Mobile 1 synthetic oil and filter. Mobile 1 filters are made from synthetic material rather than paper, and the material used is thinner and much longer than the paper wrap of other filter makers. It costs more, but filters to a smaller particle.With tight engines, you should use the best filter you can find and as far as I know, Mobile 1 is the only one that accomplishes the task.
According to Wikipedia the suspected issue with these engines is bearings that wear out too quickly. This teardown would seem to back that up given the state of the con-rod bearings out of this engine. It also looks like this engine wasn't particularly badly cared for. Just wasn't built to last.
Thing is, the bearings should not wear in a properly oiled hydrodynamic bearing. (Other than initial cold start.) This indicates to me there is some type of oiling issue, whether that be too much clearance on the mains which robs the rods of oil volume (thus pressure), or maybe the ports from the mains to the rods aren't big enough or something.
I've had at least 8 customers come back to me to request their oil change history invoices so Kia / Hyundai would replace their engine under warranty. Quite surprised that they all got replaced for free since some of them were over five years old.
you are right I just got 2015 Kia sportage with only 13363 ks on the clock its like new it came with 3 year warranty. from what I read it was the Korean made motor plant that had the engine bearing problem .motors built between 2011-2016 @@phillipbanes5484
First, LOVE the content. Not a mechanic but your teardowns are educational and entertaining as well. Regarding the Theta II engines: I can not stress enough on how much scheduled maintenance plays a critical role in keeping your Kia on the road (I have 3 of them - 2 of them have the Theta II engine. One of the biggest issue with that engine is the owner's lack of fuel service. It needs to happen EVERY 30K miles - no exceptions. Why? Theta II engines are notorious for their carbon buildup - GDI engines especially. One of the thing I find successful in reducing carbon buildup in BG 44K Fuel Treatment. Put in a can in your gas tank every 10K miles or every other oil change. Since the 30K service can be pricey from a dealer (which I recommend - more on that later) Owners tend to skip the service. They do so at their own peril. Another service is the 60K which is more pricey than the 30K because the tech dives deeper into the parts of the engine that needs to at least inspected if not replaced. Regarding having you Kia serviced at a dealer is to your advantage because of two reasons: 1) You will have a Kia tech working on your vehicle. Any problems occur you now will recourse. 2) Your receipts will be in one place. Anytime you make a claim with Kia you need to have ALL your receipts. A dealership will have them for you therefore the manufacturer will have nowhere to go but to honor your claim. Keep up the great content. If you can do more Kia engines it would be appreciated!
naw i gotta disagree with you only because i have read and heard and seeen stories where a oil change was done on time and people took really really good care of the care maintenance and everything and boom the engine still dyed not just 1 car but to multiple people the truth is KIA AND HYUNDAI suck at making proper reliable engines, they just are garbage companies all around stick with japanese u never gonna have problems those engines are soldiers in reliability
This was a fun one! Very strange failure by "normal" engine standards haha I guess if these 2.4s are lucky enough to make it to 200k miles before throwing a rod, they burn exhaust valves due to excessive oil consumption and you have to tear the head off anyway xD
Seems it’s what these do, usually the GDI’s are worse but it seems the issue is only compounded by gdi and not exclusively 2011+, inherently bad engines, or bad owners? 🫢
@@I_Do_Cars all the 2.4 Hyundais that I have seen at my shop were oil burners driven by clueless owners who didn't know what a dipstick was... So compound problem 😆
'Malice in the Combustion Palace' Ha! Awesome video. Currently sitting on the side of the road, with that same engine with a thrown rod waiting for a tow truck. Fun times.
I replaced one of these engines in a customer's vehicle. It had 60,000 miles on and had the oil changed every 3000 miles and had no oil consumption. It was locked up solid. What a shame, the customer tried their best to maintain it and it still failed.
A lot of them do that. My wife's 3.3L V6 on her 2017 Santa Fe did this. Oil was changed on time. Engine eats the oil and then starts to knock when you rev it too high. We had a warranty so we got a new engine after 5 months of waiting.
Had this engine in a 2012 and it failed catestrophically @ 110k... (The noise it made when it failed was *amazing*.) Kia replaced it for free, so we're square. (I know not everyone who had theirs fail got such a good response from Kia... 😢)
That oil pump assembly was very interesting! Does anyone know why they are using two oil pumps? These modern engines are very "cost optimised" so there has to be a very good reason for that.
Seemed overly complicated and built on an otherwise simple engine, but definitely seemed to work fine. I thought that was the most interesting part of the tear down.
Thanks for the video. I especially enjoyed the Used Parts Buyer, lol. As a 30 year mechanic and having owned many Hyundai and Kia products, I have to say that the majority of owners neglect their maintenance severely. My Escape with 300k is far cleaner inside that that poor Theta. Those massively long oil change intervals are for ideal conditions. Read the definition of severe service which calls for 2x more oil changes, it's almost anything. Driving too slow, too fast, not long enough, car-top carriers, cold weather, hot weather, dust.... you name it. So change the oil frequently, and use the best you can buy. It's false economy to save $10 on your oil change and then destroying a perfectly good engine and car. What I'm continually impressed with is Hyundai's warranty. They even seem to cover customer neglect. Unbelievable. Wife's new vehicle is a Genesis. I'll buy from a company that stands behind what they build.
This version of the Theta II is NOT a common probably engine I work in the service department at a Hyundai store this old pre GDI 2.4 Theta II is an excellent engine the GDI Theta II be it a 2.4 or 2.0T is less than great. Those were the ones with common failure and a class action suit on them
How picky is kia about changing oil viscosity when I do my own changes? I would like to go up in viscosity from the called for 5w20 in my 2013 sportage 2.4gdi to 5w30, but I've never known if kia would use that against me as a reason to deny an engine replacement....do you know?
@@rjbean13Sorry I never saw this comment. They do not care at all. Our service department uses 5w30 in every car that calls for 5w20 however you wont gain anything by doing so unless it is cold that last number is your viscosity in low winter temps. My recommendation would be to keep the oil checked and change it at 3,750 miles or sooner check it every 250 miles if you do that and keep up on carbon cleaning the intake valves (dont go to Hyundai for this find a shop that specializes in VW or Audi for this) You will have a long happy life with your Sportage !
My 2008 Sonata had 230,000 miles on it when it was totaled when a fool pulled out in front of me. The engine ran perfectly. Still had the original clutch (5 speed trans). Always changed the oil with synthetic. This was a 2.4 L engine.
@@waltchan I figured it wasn’t the same engine. Glad I got the good one. Great engine, 30mpg with the 5 speed stick. Replaced it with a 2018 Accent, got 70,000 miles on that car now.
My Dad's 2016 (? forgot exactly) Sante Fe Sport just went bang during this week after 60k on the clock. He only put his foot into it rarely, and was always on top of his maintenance and oil levels. In his words, the dashboard lit up and alarms started going off all over the place, so he pulled over, checked all the fluids, everything was fine, started it back up, and it sounded like a sack of rocks, so after another mile he pulled off and called a tow. It's in the shop as of typing this comment, new engine under warranty. The only other symptom was a cryptic intermittent check engine light and slight vibration at idle, both indicating "generic fuel delivery problem". In his words, "It was fine until it wasn't."
Since this engine is part of the GEMA family, it'd be neat if you did a side by side comparison between the Hyundai, Chrysler and Mitsubishi versions. I rarely see the 2.4L fail in a Jeep or Chrysler. If they're similar enough, one could theoretically swap that into a Hyundai or Kia.
The heads are different. Plus the dodge version was built together with fiat and uses Multair II so it only has a exhaust camshaft and the intake valves are ran using a multiair brick that uses oil pressure. Well the new 2.4 anyway which is also shared. I believe the older models like this one its the same. Each manufacture used their own head designs. Dodge also uses Hyundai's 6 speed automatic transmission under the name 6F Powertech.
I've personally installed a 2010 hyundai head onto a multi air block....the pistons were a little less compression but engine ran great....some of engine mount holes not in correct place for the hyundai and I had to make a pilot bushing
Fyi.....the reluctor wheel on the crankshaft has a different tooth count from the dodge/jeep 2.4 to the hyundai BUT the bolt up the same..just have to go thru hassle of taking crank out
That's the Chrysler's World 2.4L engine with fuel injection only. Hyundai had a similar one to Chrysler, Theta I fuel-injection only, produced in 2006-2010 Sonata/Optima only, which is a lot more reliable.
The Chrysler's 2.4L World is based on the original Theta I engine in 2006-2008 Sonata/Optima only. Then, Hyundai discontinued the Theta I, and it was transferred to 2009 Dodge Journey, which was produced for another 11 years until 2020.
I’m glad there was a video to look forward to. I missed half my family cause I hit a cooler on the highway and banged up the bottom end of my car pretty good. I wasn’t gonna risk driving an hour on a car I didn’t know was okay to drive. If I had pinched off a transmission line or a brake line I could be in for a pretty decent accident. Glad everything ended without one, but I’d rather not have to miss out on seeing family I don’t get to see very often.
I have a friend with a hyundai from 2012, last year it chucked a rod out the side at 100k miles. They got lucky and it was covered by the lawsuit, so they got a new engine for free. His wife wasn't happy when he told her, "you'll have this car another 10 years since it has a new engine!"
My ex wife has a 13 Tucson. At 87k (4 years ago) it gained a rod knock. The dealer balked on the warrantee until I pointed out that literally every other model with that engine was under a recall for engine failure. They did take good care of us as far as the replacement and rental but I was really sad a motor would go that fast with 3k mile oil changes and normal use. And yes. The new motor dictated keeping it for another 10 years.
@nicholasmoen1000 it's a real shame companies would rather deny, deny, deny to avoid paying in the short term, when really, by going along and replacing an engine, they are much more likely to get a return customer from the good service and being taken care of.
@@scott8919 Yeah, but for many companies these days, they value short term gains over long term gains most likely to benefit share and stock holders.
😂same happened with my girlfriend. Hers was replaced at 98k. She's now at 240k miles and ready to get a new car. I said it still has another 100k to go. Lol
@@ChrisKuwait My girlfriends mom has one in her 2013 Hyundai with 230k on the OG engine and has had timing chain noise for 6 years, still going. Blows my mind.
As a blind mechanic, I'd like to say how nice it is to listen to you.
Cracking head bolts, speeded up soud, slowed down sound..... "PENATRATOR"
Are much appreciated!
So you worked for Jeep Chrysler dealership
@@dragonbutt no, but I did have the fortunate chance to own a 64 Imperial , 413 wedge, 4bbl, push button tranny, weighing about 4 tons...lol😁
Weight = time....fun car !
Keep taking your eye drops.
Blind mechanic?
@@18890426 I have the knuckles to prove it...😅
I have a 2014 Hyundai Santa Fe 2.0T that I changed the oil in every 5000 km or so. Always. Never ran the engine low on oil, that engine was always treated like a king. It spun a bearing on cylinder #1 at ~106000 km this summer one day when getting on the highway. I'm lucky that I had documents for a few of the recent oil changes because Hyundai Canada replaced the engine under the extended warranty (due to the machining cleaning issues/class action lawsuit). If an engine that is treated perfectly fine can die like this, I have zero faith in ever buying another Hyundai again.
Did you have documents for all oil changes or just the few leading up to the blow? How many did Hyundai ask for?
@@inboundbryguy I had the last one and like 1 or 2 more before that. I was actually surprised that they covered it, I thought I was done for. I hadn't kept that many receipts as I didn't know that they extended the warranty to 10 years 200,000km. It helps that the engine was pristine inside (as it well should have been) and had no other issues.
I forgot to mention, I had to pay the dealership $800+ CAD in "diagnosis" (it's knocking clear as day, what more do you want?) and to tear down the engine for evidence & pictures to send to Hyundai Canada :( I was out that amount and I should likely be fighting Hyundai Canada for it, but I honestly don't want to deal with Hyundai ever again. I'll consider myself lucky as the engine replacement quotes were north of $8000+ CAD.
@@StimpyBoythe warranty should have covered all the diagnosis, once they agreed to replace.
That can happen with any brand and any engine. Rarely of course.
However, with Hyundai/Kia it’s pretty common.
Long time Kia dealer tech here. Before the lawauits and the KSDS update, we saw plenty of engines with this level of damage, and greater. The update more closely scrutinizes the knock signal and puts the engine into limp mode (
I wish I was around when engines paid better!
How long does it take to remove and put in a new motor?
@Moondoggy1941 it took 2.5 days from diagnosis to pick it up with new engine installed. Just had it done 2 weeks ago. Had 85 thou on car , started knocking out of the blue. Changed oil relig every 3000 Miles. Thank God for warranty from kia. Was a 2015 sorento
@@thomasjensen5237 Mine was over a month, but we got a rental so I did not care either way. I am going in for my first oil change since the repair, it will go the dealer for now on. Religiously.
The reason is absence of Japanese and western engineers in Kia.
Just when I notice no water pump destruction. The man brings the classic water pump fatality. This channels never disappoints.
The "starving kids in Africa" made this whole video worth it.
I think we can safely say that every engine that has an internal water pump driven by the timing chain (Chrysler 2.7, Ford 3.5, Hyundai 2.4) is essentially a ticking time bomb. Very bad design by the engineers!
@@samarch2189 at least Hyundai is covering the failures. Chrysler basically blamed all of their own customers for "deferred maintenance" when the early 2.7's blew up at 60k miles, and somehow they managed to win out on all of the class action suits. The later ones used a much more robust water pump to stop the failures.
@@danr9584*stellantis. And they've made it clear they don't care if Chrysler or dodge goes under. Which is hilarious.
My favorite part of your videos are always the end when you wrap everything and have almost a heart to heart discussion with the audience. It reminds me of 80’s-90’s shows.
If I'm remembering correctly, Hyundai admitted as part of the lawsuit that these were manufactured for years with metal shavings left in the oil passages. So forbidden glitter from the factory, very thoughtful.
EDIT: This is the earlier version of the Theta II that didn't have that problem.
It's more like the casting was left unclear on the oil ports leaving some oil passages not to be clear enough
If so, and on the crank drilling for that one bearing only, it would have died a long time before this happened. Chew up a bearing, major damage at first startup and then go 100,000+?
A small point- not Thanksgiving in the Canada portion of North America. 😉
@@rkinder6335Tons of Canadians have moved to the US. Are enjoying Thanksgiving here.
@@johnfranklin5277 😀
We own a 2017 Sonata with this engine. It started burning a lot of oil before 85k miles. Our local dealership did their 1000 mile oil burning tests on the engine and once they were done had a new engine approved the very next day. I have to say Hyundai did a great job in honoring their warranty. Now I am guessing they knew they really had no choice. LOL
Use pennzoil platinum and do oil changes every 5k miles. Mine went to 250k miles before I traded it in without issues. Same year as yours.
@@Lubbocksfinestthat's the thing though, some of them are fine. I'd say contaminated metallurgy or improperly built.
My gf is just now doing the consumption test and it burned like 1.14 quarts in 1K miles. They are going to do the “Compression cleanout” thing and then probably new motor. This thing sucks down the oil and knocks horribly. Last Hyundai for us.
glad to hear it. im having this done soon. only have 75k miles on mine.
@@Debate_everything Ditto with ours. Just put tires on it. Two payments to go. Sucks.
I used to tow cars. I towed these (and Subaru’s) ALL the time for blown engines. The dealerships were always packed full of Hyundais waiting for a new engine.
i heard subaru are finnicky. take care of it and it'll take care of you. neglect it and it falls apart.
@@bradhaines3142Don't listen to the Subaru fans. The 18+ cars are pretty reliable again, but Subaru went through a really rough decade before that.
Lots of bad engine/trans internals, turbos, cooling systems, wheel bearings, air conditioning and electrical systems.
Seriously Chrysler tier for a while there.
People trying to convince me Subarus are amazing when they're on the side of the road everywhere where I live lol
@@0HOON0 my stepdad has a 15, only suspension issues and thats thanks to ungodly potholes.
@@crazycoffeeYou probably saw my suberglue on the side in 1997. Never drove one after that. Best decision ever. Lol
I was one of the lucky ones. My Sportage got the rod knock at 99K miles, and had a local mechanic verify it. Then called the closest Kia dealer, and they had us tow it in and verified its a rod knock that was covered by warranty. They did give us a new longblock with no out-of-pocket costs, but it took three months because in their words "they had nine cars ahead of us".
So glad someone else covered this! I’ve been covering these engines helping people get them replaced for 4 years now! Worst engine ever made! I wrote a book for anyone who wants help getting theirs replaced!
I'm a warranty inspector and see these, probably 3 a month, more sometimes. I notice that it's almost always rod #3, either spins or seizes. I have a theory that it has something to do with the thrust bearing. Either too much clearance behind the bearing, or something to do with the drilling there, but changes delivery to the #3 bearin. , But that really doesn't explain why #4 doesn't suffer this fate equally, if not more. Talked to several techs and they think it possibly could be something along those lines. That dual oil pump is otherwise phenomenal to have, but somehow just doesn't negate this oil-related issue. Great video!!!
My 2014 Hyundai Sonata Hybrid blew its engine at about 133k miles due to the rod knocking issue. I babied that engine changing oil every 5k and spark plugs at 100k, but it didn't matter in the end. Fortunately I had the KSDS update done earlier that year and maintained oil change records, so Hyundai is replacing the engine under warranty.
Thanks for the teardown. Very informative!
I have a 2014 Hyundai sonata gls 2.4L 110k miles. Did Hyundai ask you for oil change receipts and if so how far back did your oil change receipts go?
@@ethanhoff7772 They did not ask for any oil change receipts. I got my oil changed at places that reported vehicle service history to Carfax, so that may have had something to do with it. But if push came to shove, I have receipts going back to when I bought the car at 27k.
@@ethanhoff7772 If you have your oil changed at one of the quick change places they will have a record of all the changes you had done there.
@@TheGreatSign well I had mine done at jiffy lube, they only keep records for 1 year then you can't get the record after that.
@@ethanhoff7772I change mine myself and do not keep records. As far as I can tell, a mechanic will notice if oil wasn’t changed adequately. However they also have horrible oil burning issues so it may not matter if you change it or not.
My parents are going through this with Kia as we speak. Got the extended warranty to 200k. Engine blown and now they are coming up with every excuse under the sun to not replace the engine.
And now they are trying to charge over 15k to get it fixed. All service records are in order as well and have been fighting with them over a year. Word to the wise, don't buy Kia/Hyundai junk, not worth the headache.
Lesson learned don’t buy one stick to Hondas and Toyota’s only
There is a Hyundai website with free lawyers and instructions to involve the BBB if the dealer gets difficult...
God bless you man, and happy Thanksgiving to you and your family. Even as a mechanic I never really get to tear down engines in the same way. I appreciate all you do and all you try to teach to people who want to learn how their engines work. Keep it up, we are all rooting for you.
Thank you for doing this engine, my wife’s 2018 Santa Fe sport just got a brand new engine after 80k and burning over 1.5 quarts every 1000 miles. This is after 6 months of battling the dealership but it was eventually covered. The thing that I found out is that these cars do not have an engine low oil sensor (my 21 year old bmw will tell me the oil is 1qt low with a caution light). Also that Hyundai specs their engines so that if it burns 1qt per 1000 miles driven its is within specs. The oil system is 5 quarts and Hyundai recommends oil changes every 7500 miles. this is the reason for the lawsuit. The only and first indication you have that the oil is low is the oil pressure low warning light which she got driving to work and when I checked the oil after about 3000 miles from her last change the dipstick came out dry... First and last hyundai/kia we buy.
my sons 2017 sonata uses like a qt/qt.5 each month. dealer says rings are stuck. my extended warranty wont cover stuck rings only broken rings. so he has to check his oil when he gets gas and keeps a 5 qt jug off oil in the trunk.
My 20 year old BMW will warn you about low oil as well, and it'll actually burn a fusible link and shut the engine down in a prolonged low oil situation. I presume that this is both to protect the engine from people ignoring the warning light and necessitates a trip to the dealer to investigate why the oil got low.
That's 1980s dodge with 100k level oil consumption.
I check the dipstick at least weekly on my vehicles. Never go 3k miles without checking it in anything.
I do weekly checks on my running gear. I try and get my wife involved (🤣) to no avail.
as someone who worked at a hyundai dealer these things where EVERYWHERE with the same exact holes on that engine you got. esp the hybrid versions idk why but the hybrids always went earlier then the non hybrid cars but they would all have the same falure area and have a nice viewing port into the engine. most of the time we would have the people driving them in like that having "lack of power" or "noisy when running" it was crazy to see them things in that state driving in
My 2016 Sonata engine had this type of breakdown in May of 2024 after the car had 100100 miles. Naples Hyundai dealer replace engine at no charge within two weeks! Outstanding service and product support from Hyundai (they even paid for the cost of the car rental during service).
Thank you again for all you do! I might suggest a tiny correction, the Thanksgiving day North America, in the United States occurs later in the year, because in Canada, the growing season is much shorter, and celebrating the harvest occurs sooner. This year, our Thanksgiving was October 9th. A Blessed Thanksgiving to all!
@@phillipbanes5484 Because he said "[It's] Thanksgiving, at least for me and the people in North America".
Have a 2013 Sportage with the 2.4 Theta GDI. It never saw more than 5,000 miles before another full synthetic oil change and fresh filter. It seized up (rod bearing of course) cruising on the highway at 89,000 miles and with 6 months remaining on the Kia original owner's 10-year warranty. The dealership and Kia honored the warranty so the otherwise great little SUV now has a new Kia rebuilt engine and the knock sensor hardware and software retrofits. You definitely got it right: the rod bearings in this engine are simply under-engineered size-wise. Hopefully, Kia is now using more advanced materials in its rod bearings for these rebuilds; if they're not, they're crazy since our new engine is under warranty until the Second Coming. The car is great, and the engine has always been very smooth running. After seeing that balance cartridge, I can see why. Your videos are splendidly informative btw; the way you tear down these engines is very purposeful, methodical, and instructive. The way you treat water pumps is another matter, however. I'm surprised the ASPCP hasn't gotten on your case for that. LOL
Happy Thanksgiving Eric. A engine that keeps on giving.
I own a 2018 Kia Sportage LX with this engine. Purchased it used at 29k miles three years ago, now up to 88k. Replaced the knock sensor harness and software update per the recall. Engine runs very smooth because I baby my cars. Mobile One Full Synthetic oil changed regularly at 5k miles or less. I also drive conservatively avoiding stomping on the pedal. Thank you for this teardown, very educational.
There are plenty of comments here suggesting that even well cared for H/K engines still blow up prematurely, i.e. poor design, poor metallurgy. You can do everything right, and they still grenade. I would stick with Japanese cars.
@@arcsound honestly as a former Hyundai dealer employee; it's all a matter of luck. We regularly had vehicles come through with 300-400k miles on trade I have pics of a first year Accent with 467k on the clock, rusted out (holla NE) but he drove it onto the lot and traded it. On the other hand Hyundai put in 15-20 engines for every one the Mazda shop replaced.
the older hyundai engines like the Alpha, Beta and Delta were great and rarely failed. Makes me sad to see Hyundai lost their way with these ones@@vinnys7514
@@vinnys7514
ivce had a maza for more then 22 years never had a problem and i did not treat that engine well ,, mazda makes good engines reliable engine in my opinion they rival toyota on reliability
My family leased a 2016 Sonata Limited with the 2.4, which I primarily drove from 2016-2019. Only put 45k on it, but during that whole time, engine was fine. I actually really liked it overall, great MPG AND a large fuel tank (18.5 gal), so ~600 mile range, great for long road trips (I prefer to stop for gas on my own terms). Heated & cooled seats, panoramic sunroof, quiet and comfortable.
I was tempted to buy out the lease after and own it myself, but ended up buying a Lexus ISF instead. The ISF was great, but it's harsh ride and bad mileage made me kinda miss my old Sonata. Years later I talked to an uber driver who was driving me in that same gen Sonata and I said "isn't this car great?" And he was like "no, not at all, this engine has had a lot of problems!" I was shocked. It was after that I learned how problematic these engines are. Safe to say I have no interest in owning a car with this engine (or even any Hyundai/Kia) again!
I find it literally hilarious that you were considering a Sonata, then you decided to get an ISF instead. That’s equivalent of looking at buying a Jetta, but settling on an M3 instead.
@@carsorsomethingidk I had two paths: quiet, efficient, comfortable, or a reliable V8 beast. I chose the latter. After driving 4 cylinders almost exclusively for 9 years, I needed to have power on tap.
It only takes a certain percentage of engines of the pile can ruin the brand.
Especially the percentage are high in this case.
Then you got a couple of lucky good ones that escaped that problem.
Years ago I worked with an Engineer who was the son of a Honda dealership owner. His fathers mantra was "oill is cheeper than overhaul". You channel should be required viewing for people who drive and own cars. We all need to be reminded that opening the hood and checking things is essential for engine life.
Happy Thanksgiving from Australia Eric, we don't do Thanksgiving here but I'm grateful for you and your channel - I look forward to your videos every Sunday (which is when they come out here). This is a great bonus. All the best to you and the family.
The contrast in wear between the main bearings and the connecting rod bearings seem to reinforce Eric's idea that the con-rod bearings aren't designed to handle the load and wear.
The fault was swarf left in the crank after manufacturing, so the metal shavings were forced into the big end bearings the moment it was first started. And that's where it stayed until the bearings were trashed.
@@cageordie So, to make it clear, you believe swarf starved the rod bearings until one prematurely spun out, vibrating the rod till it shattered?
I concur with Eric. Under sized rod journals and the too skinny rod itself. Design issue
I agree mine blew up at 150k km when I was flooring it on the highway the rpm went to the highest and suddenly engine was off and all the dash lights were on ( I was cruising at 90 mph when it happened 😂). The thing is before this I stopped at a gas station and the engine was completely fine standing next to it, it was so quiet that I thought the engine was off. So I refused to believe metal shavings were floating around and suddenly decided to destroy the engine after 6 years and 150k 😂.
Love these teardowns. Its fascinating how these different manufacturers solve the same problems and create others. If you ever have the time I would love to see (and i believe others would agree) a montage video of just cracking loose head and cam cap bolts. Keep up the great work and Happy Thanksgiving.
I'm truly amazed at how many nuts there are out there (I'm one) that get enjoyment out of watching another nut loosen even more nuts.
10 hours cramming cam caps loose
Yes, that's background noise for real men. I don't want to hear any of this gentle rain falling in a rainforest. I'll take cracking bolts any day.
Perhaps ranked in order from being able to undo the bolts with a crescent, through to needing a 2 metre extension, and the bar bends while extracting the bolts?
Had a Santa Fe with the 2.0T Theta II that blew up at 31k while coasting down a hill a few years ago. Had it towed to the dealer and they had 34 cars waiting on engines! Took almost 6 weeks to get it repaired
That is the most complicated oil pump I have ever seen. Integrating the harmonic balancer with the oil pump is interesting.
sammcbride2464 it's maybe a bit complicated but by far not even slightly the most complicated. Those are just simple open oil pump gears, not even slightly difficult by today's standards. But I've seen some of Eric's videos where basically the oil pump is a fiendish monkey puzzle that once you pull it apart, it's never going to work again. I forget which engine it was, but when Eric gives up on even pulling something completely apart due to complexity and then admits that there's no way in hell it's ever going back together, let alone being an oil pump ever again, you know its complicated. I once owned a Telefunken German designed VCR that worked fantastically for about 6 years, but when it stopped working, the advice was - 'get a new VCR' The thing was made to work flawlessly for a certain lifespan, but after that, non repairable - because once pulled down it was never going back together - it was that intricate and involved. Similar thing with some of Eric's pull downs on oil pumps. A Hyundai is not complicated and actually really simple. Especially when you compare it to this. An Audi S6 5.2 litre V10, that is totally trashed. Not really a complicated oil pump (and I still want to find the engine that has the most comically over-complicated oil pump I've ever seen on this channel), but the rest of this Audi is mind bendingly over-the- top-complicated, and I was actually laughing at how silly it is. And the damage........man that's even more fun! lol 😆 th-cam.com/video/AMj5bIRqiLE/w-d-xo.html
If your talking about the balance shaft thats not the oil pump. balance shafts are pretty standard in a modern engine. Im assuming you were talking about the balance shaft cause the oil pump on these is extremely basic.
@@sambeagle72 I am used to a balance shaft. Many engines I have taken apart have them, but they are a simple geared shaft that needs to be timed to the crank. I am talking about the integration in this specific video of what seems to be the balance shaft integrated into the oil pump assembly. I have not seen it that way. The balance shaft is normally orthogonal of the oil pump and you can replace an oil pump without having to deal with it.
So my understanding is their is a small piston pressure regulator on the oil pump housing that will start to jam from small debris the that get by the filter. I suspect that over time the pressure starts to drop but not quite enough to illuminate the oil pressure warning light. Combine this with oil consumption and the general public not checking their oil level as religiously is a recipe for disaster.
Happy thanksgiving to you and all the other gear heads watching. My dad just sold his crown vic with 385k miles and it still ran pretty good but was rusting out in the rear end. It would be really cool to see more high mile stuff and how they wear over time. Thanks for these, i want to do this for a living now.
Thank you so much for this wonderful teardown. One of my family members had a Kia which probably did have this engine. I do not know the entire story but I think the engine on that vehicle failed catastrophically. I believe the relative kept up all required services but I must ask about that in more detail. This video is really helpful to me in understanding what might have happened to the other person's vehicle. Thank you so much for giving us the water pump skit! I love it! I especially like the heartbroken look on the guy's face as he knelt over the broken pump.
I guess I have an anomaly. I have a 2011 Kia Optima 2.4 GDI Theta motor.
Bought brand new now has 170k. Does not burn oil, compression test last nov has all cylinders at 175 or above.
Checked the 2 small screens(can’t remember the name) on the front either side of the valve covers.
Zero indication of metal filings.
I use synth oil changed every 5k religiously. No metal in oil or filter. I ask for the filter so I can open it up to check myself.
And I don’t drive like a crazy person.
Very happy with the car. Gets 40-45mpg on highway.
We have only had one issue. Battery drain over a few days.
Turned out to be the fuse box under dash on the drivers side.
But we also maintain this car probably better than most people.
Cheers
Honda just announced a rod bearing recall on recent J motors. But BMW would just call this kind of thing normal wear items. That said, though, I had a BMW/Mini w a B38 that actually had a stop sale/recall on a main bearing. I find it remarkable that something as old-tech and fundamental as plain bearings still have regular design/defect issues in this century.
The difference is BMW replaces them via recall other than the S85/S65. Kia denies, tries to blame owners for years until class action suits were launched.
The goal is to make bearings 0.003435 rubles cheaper and making it 50% less reliable in the process.
yes BMW stands behind their bad designs!@@chrisbradley3224
@@MiGujack3 yeah like you said.
Cost cutting down to the bone
@@jasonsanders3397 Cost cutting down to the blown.🤥
Over the last couple years I've seen these cars lined up at the local dealer service dept waiting for engine replacement. It has to be costing Hyundai a ton of money in warranty and "good will" repairs. Looking at the parts it's a pretty generic design but subtle problems can lead to big trouble. We've been building engines like this for 100 yrs but "lessons learned" get forgotten as experienced folks get retired.
I've had 4 Hyundai/kia vehicles starting in 2005, and now a 2021 K5 GT LINE. Never had any engine issues, fortunately never had this engine. The cars over all were super reliable, no EXPENSIVE repairs, all kept till around 120.000 miles when sold. I keep buying them because I've always had a great experience with them. The K5 is a very nice vehicle. Thanks for the THANKSGIVING DAY TREAT!
Yes for sure
I have this engine in my suv with over 300000 miles and never had to do anything other than oil changes. I bought it brand new In 2010
Problem did not start till 2011, and your new one has the same crappy engine. Good luck making it to 100k miles
My last 4 hyundais have all been super reliable. Even the 2013 lemon elantra. No the engine was fine. The suspension geometry was a calamity.
@@stevenweiss2148 you got lucky then. I'm on a FB forum page, and every single day people tell their stories of how even new ones with less than 20k miles and the engine has blown... I joined in Jan with 4500 members, now the group has over 18k. The so called best warranty is crap when the manufacturer denies your claim for some bs item
When I was in service at Kia they said it was #3 that would not get enough oil and throw a rod. This seems to match with what I was told for sure. Cool video
As a Hyundai Sonata owner. I’ve been waiting for this one! Happy thanksgiving Eric! 👍
Thanks for being one of the rare US-based TH-camrs that recognise that 96% of the global population doesn't live in the US! I always enjoy your videos. I know you don't 'do' EVs but another entry in the Hyundai disaster catalog are the simple 2-stage gear reducers used their earlier EVs that sometimes develop tapping noises. It took me a year to realise that the cause is simply that the particle magnet was not secured in place rigidily but allowed to rattle around in a pocket under influence of the oil flow. It collects particles, wears them down then releases them back into the oil. 5 years later Hyundai have still not figured this out.
As a Hyundai technician I see these everyday.
Talk about job security!
Any updates if hyundai will cover the 3.3? Seems like they're having knocking issues too.
@@adrianpimentel7014 no they will not. They may goodwill warranty repair if you are the original owner though.
The 2008 Hyundai Sonata was the most-reliable rated by Consumer Reports in Sonata's entire history. It's all downhill since. Theta II engine came out for 2009 model, and the 4-speed auto transmission made by Mitsubishi was replaced with 5-speed auto made by Hyundai.
Is the g4kc (2.4 166 hp 2007 model) engine safe??
Great video, had personal experience with this engine. Bought a 2011 Sorento in 2015 with 50k miles. Put on another 70k miles and changed the oil every 3500 - 5000 miles. Replaced steering rack under warranty and never had any other problems with it. At 120,000 miles we gave it to our youngest son when he moved to Florida. Just after Christmas 2022, while driving from VA to FL, the engine when BANG, but he managed to nurse it home 600 miles to FL. He got a new engine under warranty. I must say KIA stands by its products. Other than the offending connecting rod, I'm impressed with the lack of wear in the internals. Would be interesting to see if oil gallery to the #3 con rod bearing was blocked.
Good to see that KIA uses a steel timing chain. Subaru engines have interference valves and are notorious for bending them when the rubber timing belt breaks.
2010 and earlier had timing belts. As long as you know how to change them which I do they are great motors. I stopped to help a driver of a 2014 Elantra. He needed a jump start. I got him running and his motor sounded terrible. Asked him if it had oil in it. I checked it from him. My 2006 elantra with 150000 miles on it sounded quiet. His sounded like piston slap. I told him to put heavier oil in it and sell it to someone else!.
I'm a Kia tech. These engines burn oil all the time from the valves, causing us to do oil consumption checks ever 1k miles and they fail the check 95% of the time. After 3 checks, if they fail all 3, new motor. There's literally a nation wide recall on these motors to have them replaced because they are so bad. We replace at least 4 a week. Valve cover gasket issues are also common causing oil leaks. I've been waiting for this video lol. I've seen these being replaced before 10k because of oil consumption issues. When I mean it's every one, it's every single 2.4. Oil changes on these are always fun, because most the time not even a quart drains from them.
What about the 1.6t smartstream?
Thats crazy man. I own a 2015 optima with this engine. Bought the thing used with 33k miles and now at 85,700. I have always changed engine oil regularly and done other maintenance myself. My engine does not consume or burn any oil. I check that regularly.
I have also pulled my valve cover twice. First time I wanted to just check for wear and anything that might be wrong. The valve cover gasket looked so good I just stuck it back on after my check even though I knew that was a bad idea. I kept a close eye on it for leaks and there weren’t any. 18 months or so later I replaced the valve cover and fuel pump gaskets and the cams still look just fine. Those old gaskets were very brittle though.
@@Lighting21159those are great.
@@Lighting21159 sorry I'm getting back so late, but those motors haven't had any bad issues yet or reports of problems. I like them, not a lot of power but they are enough for the Kia K5 and Hyundai Konas. I think they are in the sonatas too. Only thing I've seen go bad on them was literally just a coil pack. Just keep up with oil changes every 4-5k miles. I've seen so many with over 100k on them
The wife's 2012 Tuscon had lower end rod knock. Took 4 months to get it back and they covered the rental car. Was at 95K, oil was clean (I do my own oil changes religiously) and didn't have receipts other than possibly what Autozone might have. Overall, I was very pleased at how they honored the warranty. Was on a trip when it happened, and due to the time of night, one of the employees took us to an airport to catch the rental car company 10 minutes before it closed. They knew they couldn't fool me, as I diagnosed it for them. It was making a LOT of noise! Told the wife she's lucky... 5K before the engine warranty ran out, and now she has an extended warranty.
i’m a master tech at kia and will tell you i replace atleast 4 a week for free on cars with this engine. couple factors are at play lack of proper maintenance, rod bearing sizing faulty/ direct injection engines have the worst issues by far/
to give an example i just had a 21 with the 2.4 come in that had 50k miles this week had a oil change at 20k miles and then its second one at 49k miles. engine began to knock at 50k and they are suprised they aren’t getting an engine under warranty… i also believe there is an issue with the oil pump they have for the 4 cylinders due tot he fact most failures i see are with the very last rod bearing getting improper lubrication
I work on them to. One of the main issues I think is the earlier theta engines where manufactured poorly and the oil passages wasn't clean properly. The later years and the replacement engines mainly have a oil consumption and they burn oil so bad that it goes low on oil too many times and then it blows. But also doesn't help that some people don't change the oil making it worse. The main thing is Hyundai should of changed their piston ring and oil control ring design.
@@rushking19 forgot to mention this, you are spot on. rings have such low tension that if you don’t keep up on those oil changes you will get clogged control rings and then the oil burning leads to the seized engines/knocking unfortantely
@@DOCTOR_KIA that and the oil control run is so tiny and thin so they easily get clogged that the Carbon from it being gdi .
How many oil change receipts do you need going back how far to be approved?
This autopsy was brutal. We really are here for the carnage.
Hope everyone in the US enjoyed Thanksgiving.
This engine ruined my buddy's life. Metal in oil at 115k. No help from Hyundai. 6k for replacement. Had to start double shifting at work to make ends meet.
I have a 2014 Hyundai Sonata GLS w/2.4 engine. We have taken very good care of the engine since we got it used at 8k miles. Engine blew up at 96k miles. Took it to the dealer and since oil was full and clean (except for some forbidden glitter) the engine was replaced, no questions asked. We now have an engine with a lifetime warranty.
Wow... this one hits home... and on Turkey day.. how did you know...
I am stranded in Blueridge Georgia and couldn't get back to Knoxville Tennessee for Thanksgiving..
Very sad day..with metal shrapnel everwhere and holes in the block..
Now I have a hole in my heart..broken..
I work on these cars everyday. No matter how good the 2.4s are taken care of, they always burn oil. And yes Eric is absolutely correct, we have engine cars that have been waiting for months. It is virtually impossible to get these engines in.
Quick edit: Hyundai only approves engines if they burn more than 1 qt. of oil every 1000 miles.
My aún has a 2017 2.4 sorento.... it doesnt consume any oil at all
Waiting for months? Can't get the engines? Best news I've heard about these p.o.s. in awhile.
Hopefully these waiting for the next 4 piston granade people will get some religion and move on to a more reliable brand.
Lol, I have a 2009 Kia Rondo with the 2.4 Theta engine and it's never used any oil between 5,000 mile oil changes with 170,000 miles on the clock. That engine he tore down was not a Theta 2 engine as it wasn't direct injection.
@@vegasfordguy Hyundai produced a non GDI Theta 2 engine prior to converting cars to GDI.
My understanding it was only the GDI engines that had the problems (as they changed production methods for the GDI engines). I have a early 2009 Hyundai Sonata with a non GDI engine that has over 300,000 miles on it and it does not burn any more oil than when it was new and runs great. I have used Mobile 1 since about 5000 miles.
My understanding it was only the GDI engines that had the problems (as they changed production methods for the GDI engines). I have a early 2009 Hyundai Sonata with a non GDI Theta II engine that has over 300,000 miles on it and it does not burn any more oil than when it was new and runs great. I have used Mobile 1 since about 5000 miles. Note that internet research shows that the GDI Theta II engines were used in last few months of 2009 Hyundai Sonata production.
I know several other people with non-GDI Theta II engines who also have tons of miles with no or very little oil consumption (not everyone I know uses synthetic oil).
I've got the same non DI engine in my 2012 Tuscon. 221k on it. Burns a quart between the 5k mile oil changes and sounds like a 3 cyl. Kubota on cold start, but she's still running strong. Gets quiet after it warms up. And it sees WOT multiple times a day. I was hoping to bring it up to you Eric for a tear down once she quits, but I hope to get a lot more miles out of it first.
That's actually really good. Hyundai/Kia consider a quart of oil every 1k miles "normal".
Sell it to me, i shall Uber it
so when its at 5,000 miles you have put 5 new quarts in it?! so you are putting in 10 quarts even 5,000 miles!
@@scott8919
Thanks Eric! My mother loaned me her 2013 Sonata a couple years ago. The engine let go while I was doing some...ahem...mildly spirited driving around town. It took the local Hyundai dealership 8 months to get a replacement engine. The good news, is they gave her a free loaner car for that whole time XD
They don't mind; the stealership gets to mark the vehicle as sold as soon as it enters their service loaner fleet.
*I bought a used 2011 Hyundai Sonata* back in 2016 with 106k miles from auction for $5000. Two years later in 2017 with 130k miles, the engine locked up. *Local Hyundai dealership replaced the engine block with a brand new one for free due to a recall,* no questions were asked. They even gave me a loaner car. *Now in 2023 the car has 230k miles on the dash and driving great so I’m happy with Hyundai* and would gladly buy another one.
I own a 2012 Sorento with that engine; 103,150+ miles on it. Trusting my LORD for it to keep going. I perform oil changes every 5,000k/6 months (full synthetic). Keeping my hopes up!!! BTW, I love your sense of humor, dude!!
Mine started knocking at 112k before it blew. It started when I was really getting on it to pass a car. Once it's started knocking , it only made it another 50miles. My dealer gave me a new engine, but I still had to pay for sparkplugs, and oil $600. I won't touch Hyundai ever again though.
Global engines have landed in the Ford, Chevy, Chrysler as well as Hyundai / Kia line ups and probably nearly all Builders. Bad oil changes and debris left behind at the machine shop process were heavy hitters against the line up. There are even specialty tools for checking piston/ rod end play thru spark plug holes and required for warranty claim if the engine turns over. I enjoy your channel and Thank your for sharing.
Are you talking Global Engine Alliance? If you are, they were a joint venture between Mitsubishi, Chrysler and Hyundai. The issues experienced with Hyundai Theta and Theta 2 do not occur in Mitsubishi engines. Mitsubishi used a modified head design and bumped up the oil pump output. Well maintained Mitsubishi with this engine, will happily go over 500k kms without any issues.
I also haven't heard of Chrysler engines, of this serie, having mechanical issues (plenty of electrical gremlins).
Excellent show of tear-down. I have the Hyundai 3.5L which is running ok at 160K miles and I hope it goes much more. After seeing your teardown and reading some comments, I would never want to own a Theta 2.4. Thank you.
There was a point and time where the Hyundai dealer by my work had rows and rows of these engines outside of the parts shipping door. Both cores and new engines. It was wild to look at.
My aunt has a 2017 kia sorento with the 2.4 engine. Has been very reliable. Another problem common on these (specially the 2.0) before 2016 are notorious from suffering oil starvation because of a garbage design oil pump, that has plastic gears and a tiny pickup tube). Most issues are found in engines made in hyunday/kia factory in alabama between 2011 and 2016.
My manager has a 2013 Kia Forte and I'm pretty sure it has this engine, he brought it into the dealership for a fire recall warranty, and not into 3 hours for the drive home and it starts knocking so he calls the dealership and they put a new engine in for him.
I've always wondered what the dealership did during the fire recall that could've caused an engine failure.
I used the ATS chemical 505 cro oil system treatment in my 2014 Hyundai sonata 2.4L. As you know these cars are notorious for burning oil out the exhaust in the form of blue smoke. Since I did the treatment and changed my oil, my car went from 23-24 mpg to 28 mpg. I am now 800 miles into the fresh full synthetic oil change since the oil system treatment. I check the oil dipstick constantly. It has been 800 miles of driving and I have burnt no oil. I still have the same level on the dipstick, a smidge over the F dot on the dipstick. Before the oil system treatment, I was consuming at least a quart by this point, now I' am consuming no oil. I also experimented on my 2010 Hyundai accent gs with 176000 miles on it. It has burnt oil ever since I can remember, to the point where I had to add a few quarts between oil changes. I added 4 oz of marvel mystery oil to the crankcase and drove it for 200 miles and then changed the oil and filter. I have now clocked 700 miles since the oil change and the dipstick shows that it's still a bit above the F dot on the dipstick as well. I hope this information can help other people.
Saw a short with a guy who supposedly got fired for showing 20 engines in a shop to get replaced in Kia/Hyundai's.
Y’all’s presentation technique is gold! Informative, yet humorous! Keep it up!!!
Happy Thanksgiving man! I absolutely love your water pump skits; i swear they cure my depression. lol.
Also, absolute long shot, I'd love to see a tear down on an Subaru EA81 or EA82, had terrible luck out of those motors, there has to be at least one.
EDIT: didn't specify make of engine.
Have had an EA81 in the front of a microlight for 16 years, 356 hours, without any issues. Trust it 100%.
Another great episode Eric!!; My guess is this engine has lubrication issues to the rod bearings... The main bearings probably survived quite well because they are the first bearings to be fed oil, then the oil is sent through the crank to the throws, where the volume & pressure is probably insufficient... I'm also thinking there are 2 oil pumps because 1 pump is for the top-end, and the other pump feeds the bottom-end...The notion of machining chips being lodged inside of the oil passages seem to make sense, because of the isolated damage this engine was subjected to... BTW , The suprano 'Alvin & the chipmunks' voice and the Low pitched 'droid' voice you use are quite funny... The low voice that mentioned the word 'violence' when you were taking the ballancer/oil pumps cartridge aoart; had me rolling, holding my gut when laughing so hard.. 😂
Ah yes kia/Hyundai I can't remember a single engine ive worked on through many years of tearing apart engines that I hate more that the gdi engines.
Can I ask you what is the main issue with the GFI? I have done carbon buildup maintenance and so far 100k miles after, it feels perfect. I'm starting to accept I would have to sell this sorento eventually. (G4KJ)
@@RafaelPernia carbon buildup is the main issue and if you are late on one or 2 oil changes ive seen damage occur they can do 100k easily yes but alot ive seen haven't made it past 80k
I love my '17 optima. 80k and not a single issue. The perfect appliance vehicle. With the lifetime engine warranty, I'll probably keep it another ten years.
I very much doubt if you'll get another five years let alone ten. But there's always the exceptions. Hopefully it keeps up, but 80,000 isn't really very much, whether in miles or kilometres. Time will tell
I would be very timid on taking it on a trip too far from home.
@@robytar😂
I worked at Kia from about 2010-2017 and we all got real good at beating book time on engine R&R. I've seen a few, including one my daughter owns, last over 200K on the original Theta II 2.4 and everyone used 5W-30 Synthetic and changed the oil about every 4-5K. Yes, they are a POS lightweight crappy designed throw away engine but thin 5W-20 isn't their friend and especially for people that go 10K on oil changes and forget to check it and add some every once in a while. My Daughter's has always since day one used about a quart of oil every 4K and that's how I know it's time to change it.
I have a 04 Hyundai Elantra with 435,000 miles, runs perfect, engine and trans never cracked open. It's a family spare car now. I retired it and what do I do with it? Who's going to buy a car with 435,000 miles? If anyone needs to use it, the key is in the ashtray.
They honestly look like a fairly well made engine and surprisingly not cheap. Seems to me more so they have a major Achilles heel or two that have gone sadly unaddressed.
I have heard other people say they had always run 5-30 and never had any problem with their engine either.
i heard some folks putting Rotella T6 10-40 oil and help a lot with oil consumption
And the customer still pays full pop on non warranty repairs ! It's always been that way , sadly
Poking around on the phone and saw a new teardown mid-week.
So exciting.
Wife and kids have Seinfeld or The Office, some Netflix crap.
Teardowns are the stuff of life.
Thanks so much !
Keep it up!
Happy Holidays all.
I think I read that these had issues with machining debris being left in the block and eventually blocking oil passages. That accounts for the inconsistent quality/lifespan.
Supposedly crank electrochemical deburring according to the articles I read just now. With their theft problems this has to be causing them huge sales issues.
@@cageordie Yes, and destroying resale value as well.
Yep. Got mine swapped for free @ 110k.
Did they make you provide oil change receipts and how many?
Theta 2 GDI are soaking the combustion chamber at each cold start, to reduce carbon build up. This soaking gets unburnt gasoline to leak past rings and into the engine oil - you get oil dilution very quickly. That's why best is to use synthetic and replace the oil no later than 4-5000 miles especially if you drive mostly short distances when the oil doesn't have time to stay hot very long and evaporate the gasoline. Another issue is cruising near 1000 rpm which puts extra stress on the rod bearings, especially given the oil dilution and the short rods. Downshift and keep it above 1500 rpm as much as possible. Most engines seize either near 85k miles or near 135k miles, for some reason. KSDS update also has issues with false alarm and limp modes - the update has been revised several times. Another issue is false limp mode after a heavy rain drive or a car wash - water gets to knock sensor harness - let car dry 1-2 days, restart. Some engines also start using lots of oil: H is less helpful until the engine is seized or the rod bearings don't pass the test. Never buy used Theta 2 engines, never buy salvage title or car with a used engine (not installed by H): these cars are not covered by the engine warranty.
Love the bonus Thanksgiving teardown! Happy Thanksgiving to you and your family.
I don't know how I missed this one when it came out, But, Thank you for your dedication to your fan base.
I don't believe this failure could be from machining shavings left behind, as many commenters seem to suggest.
The oil goes through the main bearings before any of the rods, and would therefore have the same damage if that was the case.
Something else is going on.
Going 20,000km without a oil change is generally not going to work out.
@@johnsnow1355 As a dealership employee, I've experienced literally a couple dozen instances where we did the maintenance by the book and the engine still failed.
@@iadr the best thing about the recall is the bearing clearance tool. That thing would be gold for checking out used engines so u know if the bearings are toast before purchasing
It ate all the oil. These engines love to eat oil and they don't tell you they are low on oil and lock up or go kaboom.
I had one seize on a road test with zero warning whatsoever. I agree
My 2011 Sonata (purchased in 2013) now have 212,000 kms. on its clock and I am still using it. Never had a mechanical issue, only 1 check engine light (loose gas cap) since owning my car. For as long as you check your oil at least once a week and topping of the oil level, you are good to go. I installed an Oil Catch can at 60,000 km., changing the oil every 5,000 kms. and using premium oil filter and synthetic oil will help its longevity. Just sharing my experience
The overall design of that engine looks pretty good, bit of a shame that it's condemned because of a lubrication failure.
Looks like saved bucks on frequent oil changes. ... Aand continued driving when the knock in #3 started occuring, otherwise there would be this discoloration at the crank.
The original Theta I with fuel-injection (2006-2010 Sonata) was more-reliable than the newer ones today.
My daughters 2.0T seized up at 69k miles and had great maintenance. Again seized with always full oil. Had to wait 10wks for a new long block install 100% covered. I think your right about the rod bearings too small. That was the only sign of significant wear in this engine, then knock knock to failure of the rod.
What's strange is this looks like a well made engine with a robust design. Strange they fail so frequently. Something is under engineered or a mistake was made somewhere. I'm sure with some light mods they could be quite good. Unfortunately, those light mods would require complete engine rebuilds.
I have owned 4 Hyundai vehicles. They all performed well until I got rid of them for a newer car. The first one was a 1997 Elantra that I got for my daughter. She had it for about 8 years until her husband drove it after the water pump failed at 140,000 miles. He drove it on the interstate until the engine seized. After it cooled off, surprisingly, it started up again, so he drove it again until it seized again. I went to pick it up the next time and looked under the hood. There was no water in it and the thermostat housing was melted away, but it still started up like new. I dissassembled the engine on top, saw burns on the cylinder walls where the piston rings were in contact when it seized. I ran a hone down each cylinder with the pistons still in it, cleaned the cylinders as best I could, got the head to a machine shop to plane it, reassembled it and got it running again. That's when I discovered the leaking water pump. So I changed that and it ran fine.I must admit that I changed oil with Mobile 1 full synthetic and Mobile 1 filter every 10K miles for my daughter because that is what the oil was rated for. Tolerances in these engines is super tight and there was no ridge at the top of the cylinders where the rings should have left ridges. The walls were so hard that the hone did not remove anything except for the black burnt stuff. Regardless of all that, it ran and did not burn oil or make any noises out of normal. The only reason I did it was out of curiosity regarding the Hyundai product and the Mobile 1 synthetic oil and filter. Mobile 1 filters are made from synthetic material rather than paper, and the material used is thinner and much longer than the paper wrap of other filter makers. It costs more, but filters to a smaller particle.With tight engines, you should use the best filter you can find and as far as I know, Mobile 1 is the only one that accomplishes the task.
According to Wikipedia the suspected issue with these engines is bearings that wear out too quickly. This teardown would seem to back that up given the state of the con-rod bearings out of this engine.
It also looks like this engine wasn't particularly badly cared for. Just wasn't built to last.
Thing is, the bearings should not wear in a properly oiled hydrodynamic bearing. (Other than initial cold start.) This indicates to me there is some type of oiling issue, whether that be too much clearance on the mains which robs the rods of oil volume (thus pressure), or maybe the ports from the mains to the rods aren't big enough or something.
@@DavidD-qr2vn or detonation.
KIA = Disposable.
That is your best water pump bit to date. Well played and hope you and your family have a great Thanksgiving!
I've had at least 8 customers come back to me to request their oil change history invoices so Kia / Hyundai would replace their engine under warranty. Quite surprised that they all got replaced for free since some of them were over five years old.
Had mine replaced for free @ 5 years and 110k!
you are right I just got 2015 Kia sportage with only 13363 ks on the clock its like new it came with 3 year warranty. from what I read it was the Korean made motor plant that had the engine bearing problem .motors built between 2011-2016 @@phillipbanes5484
My sister-in-law got a new engine for her Santa Fe - just 1000 miles out of warranty. Approval was basically overnight!
First, LOVE the content. Not a mechanic but your teardowns are educational and entertaining as well. Regarding the Theta II engines: I can not stress enough on how much scheduled maintenance plays a critical role in keeping your Kia on the road (I have 3 of them - 2 of them have the Theta II engine.
One of the biggest issue with that engine is the owner's lack of fuel service. It needs to happen EVERY 30K miles - no exceptions. Why? Theta II engines are notorious for their carbon buildup - GDI engines especially. One of the thing I find successful in reducing carbon buildup in BG 44K Fuel Treatment. Put in a can in your gas tank every 10K miles or every other oil change. Since the 30K service can be pricey from a dealer (which I recommend - more on that later) Owners tend to skip the service. They do so at their own peril. Another service is the 60K which is more pricey than the 30K because the tech dives deeper into the parts of the engine that needs to at least inspected if not replaced.
Regarding having you Kia serviced at a dealer is to your advantage because of two reasons:
1) You will have a Kia tech working on your vehicle. Any problems occur you now will recourse.
2) Your receipts will be in one place. Anytime you make a claim with Kia you need to have ALL your receipts. A dealership will have them for you therefore the manufacturer will have nowhere to go but to honor your claim.
Keep up the great content. If you can do more Kia engines it would be appreciated!
naw i gotta disagree with you only because i have read and heard and seeen stories where a oil change was done on time and people took really really good care of the care maintenance and everything and boom the engine still dyed not just 1 car but to multiple people
the truth is KIA AND HYUNDAI suck at making proper reliable engines, they just are garbage companies all around
stick with japanese u never gonna have problems those engines are soldiers in reliability
This was a fun one! Very strange failure by "normal" engine standards haha
I guess if these 2.4s are lucky enough to make it to 200k miles before throwing a rod, they burn exhaust valves due to excessive oil consumption and you have to tear the head off anyway xD
Seems it’s what these do, usually the GDI’s are worse but it seems the issue is only compounded by gdi and not exclusively 2011+, inherently bad engines, or bad owners? 🫢
@@I_Do_Cars all the 2.4 Hyundais that I have seen at my shop were oil burners driven by clueless owners who didn't know what a dipstick was... So compound problem 😆
'Malice in the Combustion Palace' Ha! Awesome video.
Currently sitting on the side of the road, with that same engine with a thrown rod waiting for a tow truck. Fun times.
I replaced one of these engines in a customer's vehicle. It had 60,000 miles on and had the oil changed every 3000 miles and had no oil consumption. It was locked up solid. What a shame, the customer tried their best to maintain it and it still failed.
A lot of them do that. My wife's 3.3L V6 on her 2017 Santa Fe did this. Oil was changed on time. Engine eats the oil and then starts to knock when you rev it too high. We had a warranty so we got a new engine after 5 months of waiting.
Did they demand oil change receipts?
@@ethanhoff7772 for me no. They just checked to make sure the engine wasn't full of sludge.
That rod almost cut the block in half. Impressive ! Thanks for the bonus teardown, happy Thanksgiving, Eric !
Had this engine in a 2012 and it failed catestrophically @ 110k... (The noise it made when it failed was *amazing*.) Kia replaced it for free, so we're square. (I know not everyone who had theirs fail got such a good response from Kia... 😢)
Did they demand oil change receipts?
"It Sonata hard..." 😅 Had to go back and see if I heard that right. Good job. Very good. Well done, sir. 👏
That oil pump assembly was very interesting! Does anyone know why they are using two oil pumps? These modern engines are very "cost optimised" so there has to be a very good reason for that.
Two smaller diameters to keep it in that package rather then one large or maybe extra oil needed for the balance package.
It needs two balance shafts so putting an oil pump on the end of each one to make the pump smaller makes sense
one pump would balance the other, in the same way that the balance shafts operate. I like the idea because it offers redundancy if one fails.
Seemed overly complicated and built on an otherwise simple engine, but definitely seemed to work fine. I thought that was the most interesting part of the tear down.
They decided to use the balance cartdrige as the oil pump too. There is nothing special about it
from what I read from KIA the recall motor notice / the knocking problem was in the 2011 to 2016 KIA made in the Korean motor plant
As a hyundai master tech, it comes down to the vehicle being gdi, they run dirty and consume oil , so eventually they just give up
I have a 2014 Hyundai sonata gls 2.4L 110k miles. Did Hyundai ask you for oil change receipts and if so how far back did your oil change receipts go?
Thanks for the video. I especially enjoyed the Used Parts Buyer, lol. As a 30 year mechanic and having owned many Hyundai and Kia products, I have to say that the majority of owners neglect their maintenance severely. My Escape with 300k is far cleaner inside that that poor Theta. Those massively long oil change intervals are for ideal conditions. Read the definition of severe service which calls for 2x more oil changes, it's almost anything. Driving too slow, too fast, not long enough, car-top carriers, cold weather, hot weather, dust.... you name it. So change the oil frequently, and use the best you can buy. It's false economy to save $10 on your oil change and then destroying a perfectly good engine and car. What I'm continually impressed with is Hyundai's warranty. They even seem to cover customer neglect. Unbelievable. Wife's new vehicle is a Genesis. I'll buy from a company that stands behind what they build.
This version of the Theta II is NOT a common probably engine I work in the service department at a Hyundai store this old pre GDI 2.4 Theta II is an excellent engine the GDI Theta II be it a 2.4 or 2.0T is less than great. Those were the ones with common failure and a class action suit on them
How picky is kia about changing oil viscosity when I do my own changes? I would like to go up in viscosity from the called for 5w20 in my 2013 sportage 2.4gdi to 5w30, but I've never known if kia would use that against me as a reason to deny an engine replacement....do you know?
@@rjbean13Sorry I never saw this comment. They do not care at all. Our service department uses 5w30 in every car that calls for 5w20 however you wont gain anything by doing so unless it is cold that last number is your viscosity in low winter temps. My recommendation would be to keep the oil checked and change it at 3,750 miles or sooner check it every 250 miles if you do that and keep up on carbon cleaning the intake valves (dont go to Hyundai for this find a shop that specializes in VW or Audi for this) You will have a long happy life with your Sportage !
My 2008 Sonata had 230,000 miles on it when it was totaled when a fool pulled out in front of me. The engine ran perfectly. Still had the original clutch (5 speed trans). Always changed the oil with synthetic. This was a 2.4 L engine.
That's a different engine, Theta I, with fuel-injection only. Only direct-injection version, Theta II, had recalls and problems.
@@waltchan I figured it wasn’t the same engine. Glad I got the good one. Great engine, 30mpg with the 5 speed stick. Replaced it with a 2018 Accent, got 70,000 miles on that car now.
Video was interupted by a Hyundai commercial...
😂 talk about irony ...
My 2014 Kia 2.4 engine was recently seized and replaced by KIA. The dealer shared typically always a failure in cylinder 3.
Whenever I get into my buddy's car, I find him difficult to understand.
He starts speaking in a Hyundai Accent.
Thanks, Eric! Always appreciate a little carnage with my holidays...
My brother's 2012 Santa Fe 2.4 has 378,000 plus miles on it. Early this year he had the rocker covers off and the top of the engine looks mint.
@TheRealCatof You've already cluttered the comments of this video with completely incorrect information. How about stopping doing so?
It's not the top end that fails.
My Dad's 2016 (? forgot exactly) Sante Fe Sport just went bang during this week after 60k on the clock.
He only put his foot into it rarely, and was always on top of his maintenance and oil levels.
In his words, the dashboard lit up and alarms started going off all over the place, so he pulled over, checked all the fluids, everything was fine, started it back up, and it sounded like a sack of rocks, so after another mile he pulled off and called a tow.
It's in the shop as of typing this comment, new engine under warranty.
The only other symptom was a cryptic intermittent check engine light and slight vibration at idle, both indicating "generic fuel delivery problem". In his words, "It was fine until it wasn't."
Since this engine is part of the GEMA family, it'd be neat if you did a side by side comparison between the Hyundai, Chrysler and Mitsubishi versions.
I rarely see the 2.4L fail in a Jeep or Chrysler. If they're similar enough, one could theoretically swap that into a Hyundai or Kia.
The heads are different. Plus the dodge version was built together with fiat and uses Multair II so it only has a exhaust camshaft and the intake valves are ran using a multiair brick that uses oil pressure. Well the new 2.4 anyway which is also shared. I believe the older models like this one its the same. Each manufacture used their own head designs. Dodge also uses Hyundai's 6 speed automatic transmission under the name 6F Powertech.
I've personally installed a 2010 hyundai head onto a multi air block....the pistons were a little less compression but engine ran great....some of engine mount holes not in correct place for the hyundai and I had to make a pilot bushing
Fyi.....the reluctor wheel on the crankshaft has a different tooth count from the dodge/jeep 2.4 to the hyundai BUT the bolt up the same..just have to go thru hassle of taking crank out
That's the Chrysler's World 2.4L engine with fuel injection only. Hyundai had a similar one to Chrysler, Theta I fuel-injection only, produced in 2006-2010 Sonata/Optima only, which is a lot more reliable.
The Chrysler's 2.4L World is based on the original Theta I engine in 2006-2008 Sonata/Optima only. Then, Hyundai discontinued the Theta I, and it was transferred to 2009 Dodge Journey, which was produced for another 11 years until 2020.
I’m glad there was a video to look forward to. I missed half my family cause I hit a cooler on the highway and banged up the bottom end of my car pretty good. I wasn’t gonna risk driving an hour on a car I didn’t know was okay to drive. If I had pinched off a transmission line or a brake line I could be in for a pretty decent accident. Glad everything ended without one, but I’d rather not have to miss out on seeing family I don’t get to see very often.