GM AFM and DFM Lifter Failure (class action lawsuit)
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- เผยแพร่เมื่อ 25 ก.ค. 2024
- We have GMC Denali's with 6.2 engines and we have been see multiple failures in our fleet.
Leave some Comments Below on Your Experience
This video is for you if you have a 2014 or newer GM Truck, SUV, or Car with Active Fuel Management (AFM) or Dynamic Fuel Management (DFM). This issue specifically affects the L82, L83, and L84 5.3L, the L96 6.0, and the L86 and L87 6.2L engines.
We have DMC Denali's with 6.2 engines and we have been see multiple failures in our fleet.
GM Releases Valve Lifter Service Update For V8 Engines: gmauthority.com/blog/2021/12/...
Here is the link to the actual class action lawsuit: www.classaction.org/media/har...
The vehicles involved in the lawsuit are as follows according to the car-complaints site:
2014-present Cadillac Escalade
2016-2019 Cadillac CTS-V
2014-present Chevrolet Silverado
2014-present Chevrolet Silverado 1500
2014-2019 Chevrolet Corvette
2014-2016 Chevrolet Avalanche
2014-present Chevrolet Suburban
2014-present Chevrolet Tahoe
2016-present Chevrolet Camaro
2014-present Chevrolet Camaro SS
2014-2016 Chevrolet Corvette
2014 to present GMC Sierra
2014 to present GMC Sierra 1500
2014-present GMC Yukon
2014-present Yukon XL - ยานยนต์และพาหนะ
![Lifter Failures - Class Action Lawsuit Silverado [GM] AFM / DFM: 2014 - 2021 GM V8s](/img/n.gif)
They won’t fix the problem if people keep buying the junk.
Lol even if people did stop buying they still wouldnt go back and fix past motors
Both of y'all nailed it
But what do you do?!?? GM is a better truck overall than any other truck!!
well GM is also drastically behind the curve as it pertains to gas direct injection only motors! clearly GDI only is a bad design without port injection as well complementing
the fuel system to help clean the blow by carbon deposits off the intake ports and valves !
@@thisdayage7997 first off I had a 2014 Silverado first year for the LT direct injected engine, 149,000 trouble Free miles!
Not one issue!! I averaged 24 MPG at 74 MPH!! With a near fully loaded Z71 Not one problem!
My buddy had a 2014 Silverado also with 154,000 trouble Free miles and he towed heavy trailers all of the time!
Those were damn good engines!
I would beat on my truck and not one issue!
I only had to replace the radiator..
GM didn't need extra fuel injectors like other brands.
They had it figured out...
GM has taken a solid, proven and reliable engine and turned it into a over engineered, unreliable disaster. My 2002 6L LS went to 400,000 miles without any major engine problems and the only reason why I had to scrap the truck was because the frame rotted.’
My dad has had 3 gmc sierras over the last 20 years. All with the 5.3. The 2 most recent had dod. He put 300,000 miles on all of them without any problems at all. An alternator here and there that's about it.
How many times did rear main go out?
400k is routine for a Toyota
GM should warrantee these motors for life just like Hyundai did ridiculous putting garbage in these engines. They knew they were going to have a problem. These motors should be warranted 100% by GM and loaner car should be given while the repair is done. Thank you.
Why would they do that when it's idiots that don't service their engines correctly, it's called neglect.
@@gleanerman2195
Some well maintained engines are having the SAME PROBLEMS.
Right. Just let the engine run.. these regulations on large vehicles MPG makes manufacturers
If your Regular warranty runs Out Then Get Another Warranty, Car Care , etc.
Gm stupid design.
Always owned GM products my whole life and never had an issue. Bought a new 2020 trailboss 6.2, huge mistake. Long story short but in 2 years, 27,000 miles i went threw 2 complete engines and one transmission. Transmission went was the last failure. I had it towed to the nearst dealer, gave them all my case numbers and demanded GM buy the truck back at market price. 2 hours later i walked out with a fat check in my pocket and walked across the street to the toyota dealer and have never been happier.
Toyota looks good until 2023 models..
@@alanmorrison3598I agree. I miss the older style tacoma. I bought a 2004 brand new. When my son turned 16 it already had 220k miles so I gave it to him. He has stuck another 100k on it. Think it’s at 350k now. It’s went through a couple batteries and a alternator and that’s it. Regular maintenance. Back when it was new I took the bed off stuck it on the lift and undercoated the whole bottom of the truck. It doesn’t have a spot of rust and doesn’t leak or use a drop of oil. Ya just can’t beat those older Toyotas. Not a fan of the newer ones as far as looks go.
We swapped our fleet trucks from Chevrolet to Toyota, you save money, and you want have to hear that special gift that keeps on giving. The BOAT ANCHOR GM 5.3 or 6.2 GOING TAP, TAP, TAP
@@alanmorrison3598 Every Toyota I have ever seen looks like Snit.
King Toyota second to none. In honor, pride in their craftsmanship, reliability, swiftly fixing issues with their vehicles. They deserve all the praise in the world.
Back in February I tore down and rebuilt my brother's 5.3 in his 2010 GMC Sierra 1500. The engine had almost 400k prior to me doing my magic. The AFM lifters had been replaced sometime in its life due to the wear marks on certain fasteners. I only discovered one stock normal roller lifter that was at the beginning stage of wiping out the lobe. I installed Texas Speed DOD delete kit and adjusted the mapping of the engine to maximize the efficiency and drivability, my brother didn't want to use the Texas Speed cam, so I chose the BTR Truck Norris cam and that bump stick really done excellent.
Here's the Cliff note version of the this video; "we got a $10,000 screwing by GM over faulty lifters but we're such fanboyz we continue to buy faulty trucks from GM".
This is such an overblown issue, had AFM since 2007 and the truck is still going strong, and gets 18 mpg still, in fact I think the money saved in gas is now enough to make it pay for new lifter if they went bad vs the added cost in lower mpg.
Literally lol
I don't thinknit is as much "fan boys" as it is that options are extremelly limited in the full size SUV category. Usually, it is the Toyota people who are fan boys.
Great informative video!
This is also an issue for the GM LGX engine , the also made a service bulletin PIP5486H.
WOW...10 LARGE to fix this problem. No wonder a shop told me that GM's remedy was a complete engine replacement. I have an '07 Avalanche with the 5.3 engine. I started getting error messages including traction control errors. Eventually, we got our hands on a good code reader and discovered my #7 cylinder wasn't firing properly. The DOD or AFM uses those special lifters in cylinders #1, #4, #6, and #7, two of which are deactivated at a time so you are running on 4, 6, or 8 cylinders. I did some research and discovered which parts would be needed as well as where to get my ECM reflashed. In all, the parts were about $ 500 and the reflash was $ 50. I needed a new cam and lifters, and a new valley pan. Of course, new top end bolts and gaskets. I used the same pushrods and all other intake components. This was the first LS I had taken apart. I have heard you can get the lifters out without removing the heads, but didn't know that when I worked on mine. I would recommend simply removing the entire front end: fenders, inner fenders, radiator and support, grille and bumper before diving in head first, it will save your back and make accessing some bolts much easier. I also heard that Summit Racing has a kit for this cam/lifter replacement. So less than a Grand to replace the defective parts plus my time involved. I replaced all 16 lifters and used a cam for a 4.8 litre LS. I have over 40K miles on the truck after the fix and it runs fine, perhaps even better than before. You'll need regular hand tools, wrenches, sockets, etc, and a torque wrench that does foot pounds then degrees. Don't use your old head bolts, they are one-use bolts and the stretch is a factor in properly torquing them down. It might be a good time to have your radiator flushed and to replace your belt idlers.
Have any part numbers?
Hello, I have 2017 Chevy Silverado , my lifter are bad . I heard there is a class action lawsuit for the GM 5.3 motors. If I decide to do it myself. Can you help me find better parts for my 5.3 I want to build a twin turbo on if my going to go this far.
What do you charge for your labor to do my truck? You source the parts and I'll pay for them.
Had a shop recommend buying remanufactured engine but also said at the price better to just let it burn up then by new truck. Finally sold and went to ford which i thought id never do.
Thanks for addressing their issue. We have a 2015 GMC Yukon Denali with the 6.2 L86 engine. At about 68k miles had a lifter failure and was fixed under warranty (100k). Just about 70k miles later that exact lifter started making noise again. Now not under warranty I took the engine apart myself and found the roller on the end of the lifter had been ground flat, the cam lobe and push rod damaged. I also found the lifter tray cracked which either allowed the lifter to turn or the failing lifter caused it to turn cracking the tray. The price/labor of doing a cam swap on a now 150k+ mile engine really isn't worth it (half of a lifter roller somewhere in the engine, lots of metal shavings, and a damaged lifter bore) and for a while now a new 6.2 L86 long block isn't available. So I'm kind of screwed on how to fix it. I did just buy an engine from engine swap supply with the DOD delete. ($8400)
I had the lifter issue with my 2021 sierra AT4 6.2 and my 2021 Tahoe with the 5.3 V8 . Unfortunately, my AT4 with the 6.2 engine the issue to only happened with the lifter but it also affected the camshaft! In the other hand , the Tahoe had the lifer issue only which happened 2 times after the dealer fix !
I end up with the selling both vehicles and I bought a Toyota . In I will never think about buying a GM product again !
And you just funked up.
My son in law's 2022 Tahoe just experienced a catastrophic engine failure at 50,000 miles. Luckily, his truck is still under the powertrain warranty. It used to be if you wanted to buy a high end SUV, and wanted trouble you bought a Range Rover. I've bought and driven GM vehicles my entire life, now I starting to question my future purchases
G M has a reputation for trash engines. Corvair, Vega, the Cadillac V-8,6,4, Citation, and now these DOD fuel management fiasco's etc "experiments" that they unleash on the public.
Hi Guys thanks for the great video. I'm on to my second failure on my 08 Avalanche. It's a great truck, the rebuild lasted for about 25,000 miles. Looks like we will to the repairs again. This time we plan on going with the Diablo system. The first time we didn't have a damaged cam. This time it's a wait and see. We do our own repairs. It seems like Guys like us are put on Earth to fix everything. LOL
Great video. I have a 2016 GMC Sierra 1500 Denali. I had a lifter on cyl 7 get stuck. I took the engine apart and changed out the cam and all the lifters with new non collapsible lifters. I also programmed out the AFM. I got rid of the vacuum pump as well.(that ended up in a recall as well)
How it's running after the repair and changes? Gas consumption increase a lot?
Will it still pass the emissions test ?
Where I live, if it doesn't pass emissions it can't be registered.
I bought a super chips programmer several years ago and deactivated the AFM when I learned of the problems and that I could deactivate it. I have a 07 Silverado that I bought brand new.
They should be liable they need to replace all of these parts because they were aware of it
The fact that they’re still doing the same exact thing as negligence pretty sure you can’t just replace them with regular lifters because they will not pass smog, which is another reason that any one has any problems should sue the shit out of them
They charge $230 an hour for labor. It is a scam.
I also had cylinder #7 lifter collapse on my 15 GMC Sierra 5.3L. Luckily I had an extended warranty. The GMC dealership had my vehicle for 2 1/2 months (due to parts) and ended up replacing all the lifters both banks, cam and machined both heads and reassembled. Truck runs smooth as a sewing machine now.
Bought my son a 2018 GMC with 5.3 used with 30,000 miles on it and immediately after purchase turned off the AFM system and he currently has over 182,000 miles on it and no problems except had to replace starter at 120,000-been a good truck and he drives it hard🤩
How did you turn off the AFM? I think my 2013 Avalanche has the AFM, yet it uses oil. I need to find a Hyundai or Kia dealer
How did you turn it off?
@@aaron___6014 He doesn’t know it is impossible to tear down the engine, because I’m mechanically stupid, dumb, retarded, and there’s no real good mechanics in Central Texas anymore. There’s no Angie’s list or a reliable mechanic fact-repair checker to get an idea of down time and cost estimates… it’s a cut throat mechanic world. It’s why GM and FORD are flop failures. No warranty support, no loaner car plan, no service insurance for payment options.. Covid shut down everything and nobody wants to take pride in their work.
@@aaron___6014it’s a plugin to the obd2 port just search up cylinder deactivation prevention device
@@aaron___6014 I've just learned about modules you plug into the ODBII port that disable it. There's ways also to do it by shifting into manual mode, down a gear. From 10 to 9 or from 8 to 7.
This has been an issue since GM introduced AFM in late 2007. I had to replace all the lifters in my buddy's 07 sierra because one got stuck in the collapsed position (he was terrible with preventative maintenance though lol). It's Pretty sad that BRAND NEW GM/Chevy trucks are still experiencing this issue. I currently own an 08 sierra with the 5.3, the previous owner was religious with oil changes and maintenance. Still I decided to shut the AFM off with a superchips programmer and have not had any issues thus far (just rolled over 167,000 miles). I will be holding onto this truck as long as possible now though 😆. Vehicles are WAY to expensive nowadays to be breaking down before the 10,000 mile mark.
Just give the clunker to your grandson and go buy a real man's truck...
Could you provide more info on what a superchips programmer is? Thank you in advance
Just a heads up, it was actually introduced in 05 in the Envoy/Trailblazer with the 5.3.
@@coldsnackadventures6254 thanks for the clarification.
The L92 6.2 engine does not have AFM for 2007 and 2008.
My 2008 Sierra with an L76 all aluminum block with AFM had a collapsing #7 lifter once a year for 5 years. It was covered under warranty until it wasn't. I swapped out the engine for another L76 four years ago and I've had no problems since.
Glad to see the new variable displacement is working
I'd file a class action lawsuit against the shop that charged 10 grand to replace cam and lifters while your at it.
They don’t want to sign their name to a bad engine. Shop basically wants to do an engine replacement
Its a complete tear down to the small block to replace the lifters on the newer 5.3's. The heads have to come off in order to replace the lifters.
You'd think you could throw a performance crate engine in cheaper than that
@@porkchop10 epa is the problem there
to remove the engines on these new SUVs and trucks you have to remove the front of the vehicle. after that got to remove the heads, pull the pan off, and lastly the timing cover.
Hey Guys, 2015 Denali Crew 6.2l. I purchased new last day of 2015. It has been a terrible experience in both vehicle and dealership. FYI, GM did have known problems and a TSB on a variety of New models that they asked dealership to repair before being sold.
I experienced transmission problems within the first 10k miles. When brought in for repair I was told they were aware of some issues but there was no repair available and my transmission was not considered defective enough to qualify for replacement. Have you ever had a bad torque Cinverter? Where it locks up and shutters real bad? It was bad.
With just under 50k the engine had lifter fail. Different dealership replaced cam and lifters as well as transmission.
At about 85k the transmission started acting up again. It was Covid and I couldn't be without a truck. 95k the engine started running rough again. The 2015 models had factory 5/100 mile warranty. By the time I was able to get to the dealership the truck had 99,521 miles and it was 12/27/20.
I expressed to the service writer that the truck really needed the engine replaced.
They called and had found a collapsed lifter #8 cylinder. They were only going to do a cam and lifters.
When I picked up the truck I again expressed I was concerned about future issues and that now my warranty would be expired. I was told since this was a new repair if there were any issues within 12/12k miles it was warranted.
3 months and 2k miles later. I hear a bang, then tapping running rough a Christmas tree of lights. I had the truck towed to the dealership. I get the call. Sir, your truck dropped a valve. The engine needs to be replaced. I said okay when will you have it done? It is under warranty right? Silence......
I was told he needed to speak with the service director he'd call me back. I said that was fine and asked what cylinder the valve had drop. Yep #8.
Of course the next day I was told that this would not be covered under warranty. (I have been around, raced, worked at a machine shop building motors and been in just about every aspect of the car business. I know a little.).
I ask why isn't it covered? You told me when I picked the truck up it was warranted.
Sir, the valve dropping has nothing to do with the initial repair. They are 2 totally different things that are not related to each other. Speechless......
The estimate was $11k.
I finally spoke with the service director that went no where.
In the mean time Covid and the lockdowns caused my businesses to go belly up. I lost everything.5 foreclosure in 2 years.
The truck sat at the dealership for nearly a year. We brought a car trailer and picked it up the other day. I got it home and pulled the head. There is no visible damage to the cylinder or head. I did find a small cup with the valve, valve keepers and a broken spring.
I was relieved that it may be an affordable repair. But I woke up the next day and now I'm thinking why would they tell me it needed an engine?
I feel they were not being ethical.
Sorry for the rant.
.
Same thing happened to me but it was for my 2013 yukon denali. I had a lifter failed took it to the dealership and before doing a diagnostic a service manager said it was the transmission . I knew it wasn't the transmission. How are you going to say its the transmission if they hadn't done a diagnostic. They were charging $1,500 just to open the motor and see which lifter had failed. Wanted 6,500 for a new transmission not including labor because they said transmission fluid smelled burnt, the truck had 110,000 miles of course the fluid wasn't going to be the cleanest. And 4,500 for a new engine. I was really disappointed because I had just purchased the truck for a month. I took the truck to a local transmission and engine mechanic told me the transmission was good, only thing needed to be done was new camshaft and lifters total cost was $3500. I did a full dod delete, truck has been running perfect. NEVER again am I going to a dealership.
Over budget
If you have a broken valve spring dont just put a new spring and put it back together, or it will happen again. The broken spring is caused by a bad lifter. The clip that holds the "cup" inside the body of the lifter comes loose and then gets caught, not allowing the hydraulic part of the lifter to collapse, which in turn over extends the valve spring and breaks it. I'm not going to say what I do for a living because that wouldn't be a good idea on a video like this, but trust me you have a bad lifter. It's not just a broken spring.
@@omarnino449
S T E A L E R S H I P !
@@omarnino449 Now you know why thy earned the name "stealership." Their job is to maximize their profit at customer's expense. Maybe in a small town you have a more honest dealership.
Got the 2018 gmc w 5.3 V8 and once I heard of this problem, and did my research, I bought one of the Range plug in modules to keep it in V8 mode all the time and have not had any problems...This gave me peace of mind that now my truck will go the distance w/o engine problems....
They will still fail bought my truck new in 17 used the programmer after first oil change now at 73 k a lifter is failing even deactivated the entire time. I'm doing a dod swap ASAP before it goes boom. My truck was babied and over maintained knowing the issue still didn't matter.
Thanks for posting .. I have a 2022 Silverado 6.2L & have 45,000 miles and experienced misfiring on multiple cylinders . After countless bouts with service department I saw your video and filed a lawsuit .. my truck has been in the repair shop at the dealership for many weeks with lifter failure on cylinders 1,3,7 . Once it’s repaired I’m buying a Tundra . Plain and Simple ..
But a pre 07 GM. Better than new GM. And better than a fucking tundra by far.
So sorry for your nightmare! I have a 2011 Silverado LTZ, 5.3 (bought new). It has been pretty much bullet proof. Was thinking of upgrading but after seeing some of these videos...not so much...
I bought a tundra.best truck I ever owned .pull a broke down Chevy to the junkyard where it belongs
Update .. I got my truck back today 5/31/24 with a new engine sans tranny GM ( Dealership) offered me Market Price on my trade in which was not acceptable …. So I am weighing my options … on selling !! I am not happy with my truck although I have a brand new engine and tranny !!
@@Pontiac65Cat except the frames rot on those
I have a 2015 GMC Denali 6.2 and I am working on the second lifter change my 8 speed transmission has also been replaced this is the last GM product I will ever buy.
What will you buy instead, ford Toyota or ram.
I’ve had only good experiences with ford, but I’ve also seen colleagues of mine run their tacomas 400k plus
I've been using the Range Technologies disabler on my 2010 Silverado with the 5.3 with no issues and its going on 218,000 miles. Now I'm waiting on another one for my 2020 Sierra Denali I just purchased that has under 30,000 miles on it. Its a shame we have to pay for a 'fix' out of pocket, but I do have piece of mind knowing that there is a product that does what GM won't. Thanks for the video fellas...
I have a 2010. 80,000 miles stock with.5.3. Could you please give me the exact name of your disabler and where you purchased it. Bought the truck brand new and would like to keep it for a long time yet. Thank you.
Well ever since I’ve done more research about this issue, it’s been happening all the way back since 2006. I have a 2008 Silverado 1500LT with the 6.0 and I’ve recently experienced this same issue with the lifer. I only have 150,000 on my 2008 Silverado and I’m very disappointed that GM won’t at least acknowledge the fact that they have an issue and offer a true reliable fix to its diehard consumers. I love Chevy truck but ever since issue I don’t know whether I’ll be loyal to the brand anymore. I’d wish they’d include all the AFM systems in the class action because I’m sure there are more guys like me that have experienced this headache. Great video thx
My 2016 Silverado with the l83 5.3l had a #7 lifter collapse. Beautiful inside the engine. After a DOD delete cam, billet converter and a lot of new oem parts I was under 5k with a remote tune using HP tuners
My GMC Sierra 5.3l had the same issue with the #7. Wiped out cam too! :-( Thanks god I bought extended warranty.
billet converter? Whats that?
I also had cylinder #7 lifter collapse on my 15 GMC Sierra 5.3L. Luckily I had an extended warranty. The GMC dealership had my vehicle for 2 1/2 months (due to parts) and ended up replacing all the lifters both banks, cam and machined both heads and reassembled. Truck runs smooth as a sewing machine now.
What did it cost for the hp tune?
I installed a pulsar LT unit which holds out the DFM garbage. 105.000 miles on my 2019 Silverado. So far, so good.
Me too but it's still broke at 62000
@@joecarter809 My 2019 Silverado made it to 118,000 miles, and all of a sudden the lifter tap started. I traded it for a Toyota. Fk Government Motors.
I purchased a Diablo Sport tuner to disable my AFM. Got tired of driving in M5. I also put an oil catch can and added the sure cool STL010 instead of the OEM trans thermostat.
Best 3 things you can do for them.
I got a DiabLew tune and put in a catch can. That trans cooler bypass valve upgrade is my next step.
I have a 2018 Silverado with the 5.3 and use the range delete dongle. I have also heard of some putting a litre of transmission fluid in with each oil change.
I'm currently having this problem! I'm all in on a class action
I've been in the car business virtually my entire adult life and these technical and engineering issues with GM and Ford go way back. I'm reminded of the V8,6,4, that preceded this poorly executed bright idea, by several decades....
That V8-6-4 was an extremely ahead of its time design back then. Just amazing. To bad they need to be owned by a mechanic due to the amount of required maintenance.
I met someone that had a illegal over powered CB radio. If a V8,6,4 pulled up next to him and he keyed the mic it would shut the car off. If he held the mic key in the engine couldn't be restarted.
First time viewer. Great info regarding a concerned subject matter. As the owner of a 2019 Grand Sport, I purchased the Range AFM disabled. Hopefully I will be able to avoid the lifter failure associated with GMs version of fuel management. I will be sure to follow your future videos.
Hey has it worked since you got it boss ? Range technology ? Curious looking to get one on my Denali 6.2
Dont get it bro. I had it on mine and the lifters still collapsed
My 2018 gmc just went down. Cylinder 6 lifter. 92k miles. 6.2l...im blown away that this is as big of an issue with these motors, and i never heard of it. The dealership had three other pickups in there with the same problem.
I have a 2020 5.3 V8 just turned 50000, no issues at all, many long distance trips, powertrain warranty for another 10k miles. I have an extended warranty to cover post that. I love the truck.
Just got the word from my dealer. The failure I had yesterday was a collapsed lifter. The dealer said they didn't know anything about the failures of these motors, but they also told me they don't know when they will get the parts because the lifter, and some seals are backordered. This dealer has 20 lifters on order. That's 5 trucks they have IN HOUSE now with lifter problems, but they don't know anything about the problem. BS.
That is total BS, this has been a problem for years.
You were talking to a service advisor. To be fair, they probably don't know.
C7 corvettes look sharp, no question about it, but I went with a '13 grandsport avoiding all the afm headaches!
I prolly can't add much, but I have a friend that manages parts for several dealerships. He says he is having a heck of a time getting and keeping lifters in stock. He also said body panels are in very short supply.
I have my 2018 Chevy Silverado 1500 with 5.3 v8 with AFM. I bought it new in 2018. Had all the services done by dealer. Just hit 49,700 miles and my lifters went on me. Thank god it was under manufacturer warranty. They replaced cam, valves, and lifters. I do have the extended warranty as well but not happy that this went with such low mileage.
2014 Silverado 5.3 - First thing I would like to mention, I disabled afm via Range Finder at 55k and around 75k I started getting lifter tick, I switched to Royal Purple 0w 20 and after 10k miles an 2nd oil change the tick went away. Now I have been running nothing but Royal Purple an at 122k miles my engine purrs as it should and I havnt heard anymore ticks (knock on wood)
My List of issues and a couple other recommendations based on my experience of owning the truck for 122k Miles
Ac issue replaced condenser
3rd brake light leak
Shut truck off one day and rad fans were 100% with keys out, changed at the same time coolant sensor and thermostat (tstat was running engine cooler then usual around 175 180 degrees, in my
truck its supposed to be 207 degrees noticed 1 MPG improvement after replacement and got my Hot Heat back for them cold days... Issue resolved
Tc failed needed entire transmission, new lines and did rear main seal since why not easy to do at that point and 2nd new condenser as part of the trans job
Noticing braking issue now at 122k so booster next
Getting Random Stabilitrak service warnings more often now at 122k
Paint ripped off on roof at car wash in front of shark fin antenna
Sway bar links snapped (stupid plastic cover on them holds salt)
Highly Highly recommend Pedal Commander and set it to Sport -3 or -4 for a MUCH more enjoyable pedal feel. Really makes a difference. Has a user learning curve to it though so be aware.
K&N cold air intake Helps with a .5 - 1 MPG improvement and sounds really nice like no really it wakes the engine up for sound, slight throttle response improvement noted
I like to Seafoam the Intake every 10-20k tail pipe blows out a crap ton of smoke when I do and its some peace of mind. Im no expert but I believe that would help clean the valves
Diffs Fluid changed out once and transfer case fluid changed twice
Yep, this happened to my 2015 Yukon Denali this past winter. Block was ruined. I'm building a stroked 415ci engine with a turbo and it's going to be even more fun. No more of this DOD BS..
2013 gmc sierra 5.3 , engine would start drinking oil and then cyl#1 or 7 would misfire...gm told my dealer to replace the pistons , it was done twice under 100k miles ...I dumped it at a big loss and bought a toyota ... amazing these issues still persist even today, I told everyone I knew who had a newer silverado or sierra about my experience and they all bailed on their vehicles for something else
Factory ordered a 2015 6.2 SLT. 50000KM failed lifter took out cam, push rods and a few valves. They foxed it on warranty and I grabbed a range controller right after. At 112000km now. So far it's running fine. Oil changed have always been when the meter is at 30%.
What type of controller did you purchase?
I'm going through this right now. Trying to figure out if i rebuild or just get a crate motor.
I installed a disabler on my '13. It works perfect, and the average fuel mileage hasn't changed at all!! I bought the truck about 6 months ago with 152K, so hopefully I saved it!!
its as if the shit doesnt work huh? just a big con game of the Government huh?
Im at 252k on my 2012, i disabled mine at 165k roughly.
I think you guys are on the right track. You just need to catch it in time.
i was the original person to contact these guys in regards to cars. I have a chevy ss and they told me i was the first NOT truck to contact them. more people need to be aware of this before buying a car.
costed me 11k to get this fully fixed and my vehicle has been down since march 2022. :|
I have a 2011 Chevy Avalanche with AFM that seems to have a lifter tick on the passenger side cylinder. I purchased the Range device to somehow avoid the stuck lifter. I hope I’m not too late but I love my truck and hope I don’t have to tear it down to fix. 125,000 miles on it now.
I have a 2015 Tahoe and have found a solution to the afm. If I shift my Tahoe to manual mode and advance shift to 5 it will remain in V8. If you advance to 6 it goes back to afm V4 option.
Hope this helps others.
My 2021 6.2 trail boss dropped a valve at 17,000. I’m a Chevy fan also but definitely concerned that it will happen again and leave me stranded or worse.
Mine was delivered to the shop today. Not exactly sure what it is yet, but it was knocking bad. Oil was fine. Seems lifter related. 2021 16k miles 6.2l.. Really pathetic. The quality is awful.
Dang. That sucks
Just went through this with my 2019 6.2. Had to replace the camshaft, which was damaged. They say they can't get the camshaft bolt.
2017 denali 6.2l, bought the truck with 25k miles. now has 98k, i have always changed the oil when it gets to 30%, don't really drive it hard, (knock on wood) been a great truck so far. had to replace the coolant reservoir cause of it leaking, the windshield washer reservoir for the same reason, and had a caliber slide that was not lubed from the factory and cause pad to wear prematurely at 28k miles, oh and also had to swap tranny fluid around 50k to get rid of the shutter and went with amsoil. I don't remember having to do so many repairs compared to back in the day when they actually made good vehicles. they just don't make them like they used to.
Lifters can still fail after disabling afm/dfm in the tune or with that range device.
It happened to me at 70k miles while afm was disabled. I'm getting a btr cam and using ls7 lifters now to fix and totally deleting that terrible system.
I did something similar I went tsp and about 8 months later had ls7 lifter failure
@@raymondharris187
Oh man...😓
Just to add my .02 - My 2009 Tahoe was running great. At about 85K miles, I learned about the AFM/DOD lifter problems online while cruising YT. Bought a Diablo 3 Tuner to turn off AFM/DOD before it became a problem. Turned off AFM/DOD and religiously change my oil every 3K miles and my Tahoe just passed 233K miles this year. No oil consumption, etc. In fact, I just changed the plugs last month and they looked great - unlike when I had AFM/DOD enabled.
I have a 2015 Tahoe and I bought a deactivator from Range years ago and have not had the dreaded problem you describe.. The Range product was expensive but seems to work well.. I have 88,000 miles on the truck now, and I have the truck serviced regularly with oil changes at 3000 miles..
I had it tuned out of my '15 Silverado with a tune, now have 95K, hasn't failed yet. Also frequent oil changes.
What range product?
afm disabler@@antonio_stark
I put a pulsar lt on my 6.2 trailboss love it without dfm plus i uped the throttle response and its a fun sports truck now but i hope it helps witht the premature lifter failures.
I had the lifters replaced 8 months ago when my 21 Tahoe had only 14K miles, now at 19K miles it's doing the same thing! it's currently at the service department getting the lifters replaced for the 2nd time!
This almost sounds like bad block problems. Lifter holes are misaligned?
I had a '09 Silverado with the 5.3 and recently gave my son the truck with 133,000 miles on it. Lifters started making noise at around 130,000 miles, so my son and I did a DOD delete on it before it self destructed. Parts were about $1000 and we did the work. The oil pressure issue also came up with the truck, so the pan was dropped and it was discovered that the pressure relief valve in the oil pan had failed. Oil and filter changes were done religiously over the life of the truck. The LS is basically a very good engine, but it has some serious problems.
No excuse for the oil pressure relief valve failing.
My 2021 RST gave me issues at 48k miles. The truck smelled like gasoline inside the cab and all of a sudden the check engine light came on and then turned off. The truck started making a high pitched sound upon accelerating (sounded like the supercharger whine, only no supercharger was installed). I took it to the dealership right away and it was a broken lifter. Thank the Lord I opted for the 100k mile warranty. It took 18 days to get it fixed. I'm thinking I will have to get rid of this truck before I hit the 100k miles.
Well I got you all beat, my chevy nightmare started in July of 2022 when my wife and I were almost killed in a bad truck crash involving a flat bed stalled out in the dead of night with no lights on I was in big Red as I affectionately referred to my 05 Tank of a Super Ford Expedition xlt wich by the way had over 360k miles on her withe the original engine still kicking butt! But then a few months later and alot of surgery and rehabilitation I was in need of a replacement vehicle for my totaled Ford with by the way was still running after the crash, and I went to Harbin Ford chevy on Scottsboro Alabama they sold me a used 2010 chevy tahoe lt 5.3 with 190k miles for little over 13k and I was unaware of limp mode ( cause who in the he'll comes up with a dilliberate programed sabotage malfunction like that over in my case to malfunctions that are not even vital to the main continued operation of the vehicle and have nerve to name it a fitting name but still Limp Mode) at least they were honest with the chosen name when they came up with the idea. But then two months after paying full amount 13k when i bought it , it shuts down in fast lane on my way to a work related meeting, and this is November not even two full months after I bought it I had replaced plugs plug wires sensors and I did a fresh oil change and filed my recipes. Then in January took it to Integrity Chevrolet in Chattanooga TN and a slimy criminal named Eric began the nightmare of a con by calling asking about the details of the issues with my truck as I had above average knowledge of the problem since I had tried several things to fix it come to find out he most likely was trying to come up with his fabricated list of repaire he and the service department manager Lance would scam me and my Mother who offered to put the bill on her credit card until I was back on my feat and working again and then I would pay her back. So he called back a little later and says we put it on diagnostic and that will be $160 to this point, and it needed a new harness and my oil I just changed was supposedly contaminated so that would need to be done and a couple other repairs that would fix it if I was willing to shell out 1400 dollars later that afternoon when the vehicle would be ready for pick up so I talked it over with the wife and decided to get it fixed. So I meet my dear Mother down at and I shit you not this is a certified dealership named themselves Integrity and again heads up Chattanooga Tennessee buyers be very aware, and we were thinking we were just picking it up after it was fixed. Well this Dude Eric heard me talking about the harness I had already visually inspected when I replaced the camshaft positioning sensor, and the Ac Delco filter withe part number still on it to match the receipt records I had kept on repair and work I had already executed on the vehicle pryer to this regrettable experience, and the blugs and spark plug wires I had just installed the week before this very day I even left the empty ac Delco plug wire box in the damn truck so they would at least have clue they weren't dealing with a mechanically ignorant customer and all though I told him I replaced the one malfunctioning parking sensor but haven't reset it yet he completely ignored me because every thing they listed with exception to the unlikely diagnostic they charged on the itemized list I had replaced and all documented receipts to prove it and since they no more changed my oil or put a new filter on or plugs or plug wires or camshaft harness or camshaft positioning sensor or parking sensor I was able to pull all parts with matching part numbers from my vehicle as proof in there very office of said service department manager Lance as I lay out my to giant insulated shopping bags of part match previously dated receipts and this is after 20 calls and more than 10 different trips to try and track Lance down and or anyone else of authority that would Un screw me after being literally robbed by a dealership named integrity and FYI you know what Lance did to rectify the crime against me.... he put $700 back on the card we had payed with just half after proving with his agnoligment that we had in fact been charged for work that none of what they changed us for had been done. Folks I can't make this shit up and to boot they gave us the vehicle exactly like we dropped it off except it was close wobbling were one of there service tards hit a parking concrete barrier marker and almost knocked the front driverside wheel of the upper control arm wich they attempted to rig up the issue after we pointed it out apon Puck up. I am very aware of the rip offs that can happen at some backwoods or chain cut throat repair facilities out there but I hadn't the slightest idea certified nationwide automobile brand name dealerships were just as cruked and after a little investigating in a couple chevy forums seems like this sort of shit might very well be very wide spread intentional practices for Gmc Chevrolet dealers all over . Wich now looking back it makes sense WY chevy make more malfunctioning products per capita than any other major American made car company and also makes more money as a business model intentionally designed to make money the most important part of there operation even at the heartless deceitful loss for there customers I nean victims! Yours truly wish I was A. I. But unfortunately I am a real man who learned a hard lesson an expensive lesson butt if your dealers name is I won't rob you you might be a little suspicious, buy if the named it Integrity.....well😂
I have a 2015 Silverado LT 4X4 with the L83 5.3L. I bought it with 21K miles in '17. A lease return from a dealer. One of the first things I did (yeah, I know, warranty) was have the AFM removed via tune and I change the oil at no more than 4K miles, I use premium grade filters.
Truck is now 95K miles and running good. Between the AFM lifters and the torque converter issues these trucks have, I'm crossing my fingers. I also welded a drain plug bung into the transmission pan to do frequent (every other oil change) drain & fills which replaces about half the fluid.
My Yukon Denali 6.2L 2022 with 93.000 KLM
Lifter Failure
Oil use : 0W20
Fuel : 95
City Drive 90%
Now its in dealer to replace lifters
So , i will stay with this DFM Crap System till Complete 100.000 KLM(End of warranty) and i will Remove DFM (Delete Kit )with tuning ECU.
Great Video ..
Thanks 🙏🏼
I solved my problems with GM by not purchasing any of their products! I only buy products I feel don't need an extended warranty. I also had bad luck with GM's extended warranty!!
I have 2021 Chevy 1500 LT. My lifter went out @ 12000 miles. Anderson Chevy kept my truck for about 3-1/2 weeks and temporarily fixed my truck. On my way to Utah last night the lifter gave out again in the middle of nowhere @ 40,000 miles. I'm a big GM fan but I don't trust this truck anymore.
The only 100% fix is to have a a private shop do a afm/dfm delete/conversion. It includes a tune, different camshaft and lifters. Common when these motors are changed for motorsports applications!!
Bought a 2017 GMC Sierra 1500 6.2L earlier this year. It's currently in the shop with lifter failure, not under warranty.
Just traded off my 2017 Silverado with 6.2L engine. The oil was changed every 4500 miles with Mobile I. At 67K it developed a lifter tic and dealer advised replacing all lifters. I had also had issues with the 8spd transmission since new. My replacement Silverado is a 2023 3.0L diesel.
2011 to 2013 LS 5.3 V8’s with a Range Technology plug in are bulletproof. Read all the service bulletins, GM fixed it just before they discontinued the LS engines for the new LT in 2014.
How are they different?
@@zakattack467 Updated driver’s side valve cover, oil pan internal deflector, external knock sensors (Gen 4 LS) and no heads with the porosity problem , is the short quick answer.
2012 , 5.3 with Range ….96k miles, change oil every 5k. It was a 1 owner garage queen with 28k miles when I bought it 8 years ago. Truck is still damn nice looking and runs great. The Range module has been plugged in since 30k miles…
They didn’t fix the problem in 2011. My buddy had an AFM lifter fail in his 2012 Yukon Denali. The only way to truly not have the problem is to ditch the AFM lifters
This is great information that you guys shared. If I had know about GMC dirty little secrets I would had stuck with Ford. I purchased a 2021 GMC Sierra Denali last year. The vehicle currently have less than 16000 miles and is currently in GMC service department for lifter replacement in banks 4 and 5. During JAN'23 the service engine light came on and stayed on for a few days. I contacted the dealership which I was told that it would be over four weeks before they could diagnose the problem. After a few days the engine light returned to normal. I never took it in for the issue but did get an oil change and basic service. Recently, driving from Sam's Club the engine light came on again and begin to shake and decelerate. After traveling a few mile the vehicle return to normal. The vehicle is currently in the shop for lifter replacement in banks 4 and 5. I was told it would take over 5 days to replace the parts. I have a few questions. Could I force or recommend GMC to purchase the vehicle back? I have to travel from Georgia to West Texas, should I be concerned about making it there and back without issues after parts replacement? Should I recommend a full replace of other lifters that may cause problems? Should I get rid of the vehicle to avoid any future issues? I replace the factory exhaust with a borla exhaust system and added a cold air intake, would that cause the issue that I am currently having with my vehicle? Please provide recommendation and answers to questions. I can't afford to be stuck between Georgia and Texas and deal with maintenance concerns.
I bought a 21’ Chevy Silverado trailboss LT and have had the same exact issue you’ve stated. They replaced the lifters and push rods. 10k miles later it happened again. I took it in to be fixed but this time I called GM customer care to share my displeasure with my truck. The very next day the customer relation department called me and said that I qualify to have my truck bought back by gm or given a replacement. I had to send in the sales contract and bill of sale as well as the registration. Took about a week and got a call back from the repurchase department. They told me my case had been approved and offered me a brand new Chevy at the same msrp or a complete buyback including my down payment and tax’s/fees paid at signing. I took option two and they requested me to send a pic of my DL and 6 picks of the truck(front, rear, sides, front seats, rear seats). That was about a week ago, now I am waiting for my final offer email so I can cash out and go buy a new truck.
If I were you I’d say call right away and request a buyback. This is just gonna keep happening to you! Best of luck.
Just get the range device and keep the truck
@@Deviousdude91 you should have also called the asshole parasite epa as they are the ones who required the technology to be added to cars..
answer TOYOTA
@@hankrogacki8356 The answer used to be Toyota. When you could get the 5.7 liter engine, it was the way to go, but now with the 3.5 liter V6 they have, there are tons of people having problems with it. The ecoboosts in the Fords are no better either. I have owned all 3, and all have their quirks. I think the answer is to get the range device for a few hundred bucks, plug it into the obd2 port, and forgetaboutit.
Bought a used 2013 denali XL 6.2 After about a year of ownership i installed the Range Technology obd2 delete. Worked perfect until 115,000 miles with a #7 lifter fail (NOTE) Range Technology chip still installed. After digging into the issues it was cleer it had a valve problems previously. Rebuilt top and bottom end with the DOD/AFM delete. Truck still has issues @ low RPM?
I have a gmc sierra with the 5.3 L LC9 engine with AFM/DOD. It burns a ton of oil and has since new. It burns about 1 qt/1000 miles. I just did the ECM reprogram with the HPtuners module to just disable DOD. I wish I had done this from day one. Mileage hasn't changed at all and now the engine never goes into V4 mode. I am waiting to see if this stops the excessive oil use. Incidentally, this truck has always had driveline clunking as you slow down to stop. It no longer does this and is much smoother to a stop. I believe the cylinder deactivation causes a jerky/clunky slowdown in the driveline.
The triton nightmare in the early 00's pushed a lot of Ford truck customers over to GM just in time for cylinder shutoff tech and collapsing lifters! I hope all these people end up with a good truck one day. Seriously.
It’s why I hold on to my 2001 Silverado with a 5.3l and 375,000 miles. It may never die.
The Ecoboost 2.7s have been giving lots of trouble for Ford, The Bronco,s have had lots of issues,
the 00 issue was blowing out spark plugs and then in 2004 they brought out the 5.4L, arguably the worst engine every produced. When they started production Ford KNEW it had 22 design flaws. The biggest was they designed an engine that relied on oil pressure to control everything then put in a sub-standard oil pump. Another issue was cheapo cam followers. $2.00 each but if they spent $3.00 each, there'd be no issues. What did ford do? Saved $8 per engine and put in the cheap ones. Another issue (besides soft bearings) was the nozzle that was supposed to squirt oil onto the cam instead squirted oil straight up onto the valve cover. The "updated" ones had this nozzle angled to direct the oil onto the cam.
never had that kind of issue with my square body chevy, I'm baffled just like the doctors are about other things dying.
I was a GM mech back in the late 70's - late 80's at one time some of the GM V8s engine had a soft cam. It would wear down in less than 40k miles the good thing it would not destroy the engine like some of the LS have done.
Currently in my late 60's & still turning a wrench ASE Mater in Auto & ASE Master in Heavy trucks + more.
Other brands overhead cam engines like the V6's & V8's are some of the worse engine I ever seen have seen with timing chain rattles.
I myself would stay with the old tried & true push rod engine.
14 Silverado 1500 with 167k miles. Started tapping a little after getting a little low on oil. Less than half quart low. Got the oil changed by reputable mechanic. Ticking remained. Two weeks later #4 cylinder (afm) lifter failed. Mechanic is looking for solutions. We talked about a jasper rebuilt. Jasper cannot get us one. Not sure what we will do but nothing is appealing. Love my truck.
I have a 2014 Silverado with 5.3 and have been running the plug-in deactivation for 75,000 miles. I’ve always been very prompt with oil changes every 5k mi I have almost 150k on it now. Just bought a 2018 with 36k miles and the first thing I bought was the deactivation thing. I know of a couple of people who’ve had problems and a couple who have changed cam and lifters. My mechanic has also repaired a couple that had lifter failure....
My 2017 Silverado High Country just experienced camshaft damage. 128k miles. I have performed all services through Chevy dealership since I bought it. Spent over $8k on a bumper to bumper warranty (up to 125k miles) when I bought my truck. The dealership has seen my truck every 3-6 months since 2016 (I bought it brand new in October 2016) and never mentioned anything about the lifters. For the past 2 years, it's had a 'hitch in its giddy-up' as it would jump (or jerk) when switching gear to gear while accelerating. The dealership drove it with me multiple times and said that it was "normal" for these engines. I do wonder if all of this is interrelated? For the camshaft damage - the dealership is saying $10,639.93 to replace the camshaft, but is recommending engine replacement, quoted at $13,620.91. I am planning to contact GM, but this is freaking ridiculous.
I agree. I've been wanting a new truck for a couple of years, but decided to just beautify my 2006 Silverado Z71 and black it out. I can get a complete new motor AND transmission for less than 15k and not have to worry about making a payment on a new truck, followed by the kind of issues and expenses you are having to deal with now. They should fix yours totally free considering your history with them.
I came across a hack for DFM bypass on TH-cam . I drive a 2021 5.3L trail boss, by putting in L9 it deactivates DFM and stop/start. However from my understanding this won’t necessary ultimate the lifters from failing, but it can’t hurt.
2021 GMC Denali, with only 19000 Miles. Just told needs all new lifters, been out of service for three weeks, and may be back in 2 more.
My 2009 Silverado has the 4.8L gen four motor. It did not have DoD or variable valve timing and runs great, strong and quiet. The 5.3 and 6.2 engines had the DoD and it was a headache.
My 2016 Silverado is at the dealership now for the 3rd lifter failure in under year. This is ridiculous. Using the AFM delete didn't seem to work.
You have to physically replace the cam and lifters. Turning it off won't stop them from failing.
My answer on this is replace everything between the bumpers with a Ford 5 L
I just purchased a 2018 z71 With the 5.3 engine that has the fuel management, system the truck was purchased at a gm dealer it has 45,000 miles, so far everything is working correctly, other than the regular oil change intervals is there anything that should be done? Change oil early? I’m in Michigan
I've done all three stages of repair, changed the motor, pulled heads and changed lifters, and hammered on stuck lifters and unstuck them. the issue is NOT the spring, but the locking pins not engaging a groove. besides obvious cam damage, you get wear damage to this groove, causing repeat failures even if you change lifters. the groove is in the lifter bore which is part of the block. impossible to inspect without pulling the heads.
i agree the shortest path to not ever having to worry about this is a software delete via the OBD2 connector.
I just had this lifter failure happen to me on my 2015 GM Yukon with a 5.3. It does have the AFM (Active Fuel Management). Mine popped up as a check engine light (P0307) misfire on cylinder #7 at high RPM / high acceleration, the engine would start to run really rough for a few minutes and then go back to normal. Luckily I had just bought the truck from a dealership and they threw in a 90 day powertrain aftermarket warranty with my purchase. Took it to the Chevy dealership and they found one of the lifters was sitting lower than all the rest. They recommended changing all the lifters, and the camshaft showed no signs of damage. My friend had this exact problem with his 5.3L engine and he told me that the AFM (Active Fuel Management) is the main cause for this lifter failure and told me to get a Tuner or a module that disables the AFM immediately. If this has happened to someone I would recommend finding a lawyer and suing GM for the repairs. DON'T join a class action lawsuit, you will receive a check for like $12.
GM ruined a bulletproof old tech pushrod motor with collapsible lifters. The LT series motors might be more failure prone then the venerable LS series motors. You may know a guy with 300k on one of these but ive read story after story of failed lifters at low miles.
k 1500 250,000 miles runs great
It's not just GM. Everyone using the collapsible lifters for cylinder deactivation is having these issues. I had to rebuild the top end of a Gen IV HEMI for the same reason. MDS lifter failure that wiped out the cam and bent a pushrod. For that one I completely removed MDS and tuned it out. For my C7 I just never put it in eco mode (manual Z06) so it never activates AFM/DFM. Eventually I will completely remove it from that engine as well.
Darn. I love the Denali series
Just got left on on side of I95 400 miles from home in my 2021 Silverado with only 17,351 miles on the 5.3 V*. The dealership GM towed me to said the lifter failed and bent a push rod. They replaced the push rod and both banks of lifters and said it shouldn't happen again. The more I read about these lifters the more concerned I am the long term reliability of this truck. Anyone have any failures after installing a AFM/DFM Disabler module?
Yes, i have. its not a cure. The full delete kit with a new cam and non dod lifters is a much better option.
Just a heads up. If you purchase the extended warranty “Platinum” , it is $0.00 deductible if taken to the dealer you purchased the GM/Chev. vehicle and warranty from. Also..A heads up on the cooler lines on 5.3L and 6.2L Trucks. GM is trying to avoid law suits on another defect if the vehicle gets past their fracturing warranty. GM claims there is a national BO on the cooler lines in U.S. however, I found the line and purchased it at a dealer in Canada who had several in stock. Figure that one out! My 2019 GM SERRIA AT4 6.2 had the cooler failure and after 4 weeks, the line was replaced, I was then told the engine had a major failure requiring a new engine factory replacement. And you guessed it. GM claims they have a National B.O. on the 6.2L engines. By the time I found the engine at a dealer in Texas, the dealer claimed it was able to get the engine assembly in Michigan which is still in transit to Indiana after three weeks….Sad…The Truck has only 80,000 miles. The only savior for me is purchasing the dealers Platinum Extended Warranty that covers everything under a zero deductible. Read the warranty fine print closely. Good Luck.
Here's a heads up for ya, sell that POS and go buys a real man's truck.
@wildestcowboy2668 what's your definition of a "real man's truck"?
@@lemmuhj TRX....... Mopar my friend and I love mine.
@@wildestcowboy2668 awesome, well you sound like a dicc going around telling people to get a "real man's truck"..
@@wildestcowboy2668Until the engine starts ticking
2020 6.2 suburban been using gm dexos oil only changing it early, always 93 octane and cleaning air intake several times. 35,000 miles
I do not own a newer Chevy but my 2007 Suburban has a 5.3 Flex with the AFM system. I purchased my Suburban used 5 years ago. At the end of my first year owning it I had multiple lifters go bad. One of them was broken in half when I took it out of the engine. I did the first replacement of the lifters at home. That repair lasted me six months and I ended up with a lifter on my drivers side sticking collapsed. Since I had a few spares I took the head off over night and replaced it with a new one. That last repair lasted me two years and I finally had the whole engine rebuilt. Within 5 days a new lifter was stuck in the collapsed position. I took it Back to the mechanic shop and they had the engine tore apart again and all new parts added again. A month after getting my Suburban back another lifter was collapsed. I took it back for the second time and the mechanic got it opened in two days. I picked it back up and it has not stopped. We would drive to Georgia or North Carolina and on I-95 or the Turnpike a lifter would stay collapsed and after two to four days of driving with the knocking it un-collapses and runs fine. This last trip was a month ago and I continue to drive it with the collapsed lifter. I don’t have money growing out of my trees to keep spending money on my Chevy! This is my fist Chevy vehicle and it may be my last! I was always a Ford guy and I have nor had any complaints about my 03 Excursion with the V-10. If it wasn’t for an accident I would still be driving it. New or used I am disappointed in my Suburban and all off these stories about the exact same issue in all of the 5.3 and 6.2 engine starting in 2007 up to now in 2023. It’s been 16 years and GM and Chevy keep selling these lemons! They know that these lifters are flawed but so that they can continue to make money on repairs or trade in sales they continue to sell unacceptable flawed engines.
I am retired from GMs finance arm. I am impressed how rich all of you are. You all work hard and make $100K+ per year so spending $8,000 every year or two on this is affordable. It wouldn't be for me. Also, you sure do know your engines, or at least this part that keeps failing. Some of the commenters in here sound like ICE engineers. Nobody in here says he has bought a Toyota truck and his experience with it wrt this lifter issue. See Scotty Kilmer's vids and his advice. Surprised he has not addressed the issue you are all having. Does Toyota or Honda use this design?
GM isn’t concerned about this issue. Because almost all manufacturers have similar issues. Went through 2 engines in my Ford. So I bought a Ram . Lost compression in 2 cylinders after 91,000 miles. The Hemi’s are having issues with bad lifters and wearing cams out. The fix is a new engine. The number 1 reason for bankruptcy is auto repairs . I’ve gone through 3 engines and a transmission in 5 years.
Sounds like modern trucks are trash. Classy looking but doesn’t last.
I understand that this could be different tomorrow but i have a 14 sierra w the 5.3, 126k miles. No issues. I try to use higher end oil and filters. And change ahead of schedule by a small margin. Further context, when i bought it, it had 7400 miles on it.
Just trade it in on a Dodge ram
@@wildestcowboy2668 maybe one day. But truck is paid off. I like no payment.
@@poprater life is short one day u be dead, go get a brand new dodge or a Dodge TRX.
Look up a TRX bet you will like it
I think good oil and premium filters help. Frequently.
What would you call higher end oil and oil filters. what brand oil filter and engine oil. Thanks
My good friend is head mechanic at a GMC dealership reports its a huge issue . Biggest problem is they will only replace the faulty cylinder lifters and not all 16 or both banks!!! Only a matter of time till the others fail , GM hopes outta warranty then ?!
Is the lifter problem more prevalent on the 6.2 than the 5.3? I was going to get a Silverado 5.3 but now I’m not so sure.
I’m disgusted with GMC. I purchased a certified used GMC 1500 Sierra Denali pickup with 67,000 miles and purchased extended warranty. The first year I had the truck I was lucky enough to have the cam shaft replaced and catalytic converter replaced under the warranty. I’ve now owned the truck for 3 years. It’s very well maintained and use it for light duty around my property and pulling hay trailer occasionally. It’s now on 110,000 miles and warranty has expired. The truck stalled out a few days ago driving home. There was no indication of any issues: no check engine light, no low oil level indicator, nothing. It was towed to the shop. I now have a replacement engine cost and other parts related to the DOD to the tune of $15,000! I am still paying the note of $700 a month on this worthless piece of crap. I owned Ford pickups prior to this and bought this GMC specifically so that I could get 300,000 out of a vehicle vs 100,000. I’m done with American crap, pickups and suvs especially. My husband has a 2012 Honda CRV with 240,000 miles and has not had one repair on this car.
Bad luck for sure. But a CRV is no 1500, not even close. If you could live with a crv why go 1500?
Get a Toyota
My 1997 Silverado has over 300,000 trouble free miles on it and I sold it to my nephew. He continues to drive it to this day. I bought a 2018 Silverado with a 6.2 L engine and I’m just keeping my fingers crossed. 🤞🏼😬
I have 2010 Silverado with a 5.3L engine with 6 speed auto. It has roughly 122,000 miles on it and I do do regular oil changes with a synthetic blend.
I run it in 'manual' mode in gear 5. This cancels the AFM completely. So far, so good!
good information im new with chevy trucks ear that you drive you truck in 5 gear, my question is do you drive it in 5 gear when you are in free way or just in city I will appreciate you answer
@luisuranga9212 Mostly in city. I do leave it in 5 when in slow commute traffic as this is when AFM/DFM is at its worst!
@@michaelbruner3555 thank you for the information
I leave mine in 5th all the time, taking no chances. And my 15 Denali runs great.
It's a pain though, every time you shut off the truck , got remember to go back to M5. And now you only have 5 speed. GM got to take care this, is not fair!
I owned a 13' 1500. I did oil changes to the book. 3k-4k miles. Outside of warranty, 110K had a failure. I did a RETRO, Drove the truck for another 70k miles. Sold it to a buddy and bout a 21' 6.2 10spd. I instantly bought the Pulsar LT. I'm not playing this game again. If the lifter can't collapse, it has a high percentage of never failing. GM has a issue with this. And it needs to be addressed! I'm a die hard GM fan. But, I would stand for these issues.
My 2020 Silverado w/ 6.2 has almost 20,000 miles and is getting one bank of lifters replaced as I type this. I used the Pulsar LT almost from day one to disable the DFM and still had the lifters fail.
Had my cylinder 7 lifter fail on a 2015 Silverado LT with 42000 miles. It cost ~ $3000 as my extended warranty was 3 months expired. That was in October of 2022. March 7th, 2023 (yesterday) while leaving the neighborhood, I felt a weird hesitation - then error code P0307 was thrown, same damn thing after less than 3000 miles. I baby that truck - change the oil religiously. Obviously GM has put out faulty lifters, its time they step up and do what is right. Now I have to decide whether to buy a remanufactured engine with DOD delete already on it, or add the DOD delete kit to the truck (the parts alone are around $2k). Not something I should have to be considering for a truck with 45000 miles on it.
This same thing just happened to my 2014 with 42k miles. I only drive it on the weekends as I have a company vehicle during the week. Some bs for sure!
Same shit happened to me on my 2019 4 days after I left dealership it had 71k on it but it like wtf I ain't had it a week
I assume that's the 5.3 v8?
I have a 2017 5.3 with 50,000 miles on it and when it starts going uphill, the motor starts bouncing. I have watched several of these videos and nobody takes the truck out and actually shows you the symptoms of a valve failure.
Im going through all the comments just for that reason. I want to know the symptoms. I have a 2020 Silverado 1500 with a 5.3 and 32k miles and nothing wrong and hopefully nothing will be but just wanted to know what to look out for if it ever did happen
Just bought a new 2023 Silverado and don't like how it feels when it accelerates. The last 3 I had didn't do this and I never had an issue with any of them. I am concerned. Soft acceleration isn't completely smooth.
I did like your video, I went from a 2011 5.3 to a 2015 5.3, then a 2017 5.3, then a 2018 6.2 and now I have a 2018 6.2 all had
AFM, the 2011 went 190,000, the 2015 went 235000, 2017 went 190000 miles. my current 6.2 has 82000 miles. My latest truck is a 221 3.0L. I am the lucky one I guess. I still have the first failure to experience. however due to other experiences I have heard about, I did buy warranty with the 2018 6.2, this was used and had 50K miles when I bought the truck. My 221 is the first gen 3.0 in an AT4 trim. my other trucks were Denalis. I NEVER tow, I run 93 octane in the 6.2 if it matters.
My 2017 is having that problem right now..... A very costly fix.... Also it's crazy how the dealership doesn't have that engine in stock and it's on back order.