Immediately after you said the EGR was probably aftermarket junk, the video was interrupted by an ad for O’Reillys. The leading supplier in aftermarket junk. That was perfect timing.
I have seen several Hemi's with broken valve springs and rocker arms. When I was Fixed operations manager at a full line Chrysler dealer one of our rookie, fresh out the cap program, techs had one with a misfire code. He swapped the coil and injector and the misfire stayed in the same cylinder. He said he didn't know what was wrong because it checked out electronically. I told him to rev it up, it was popping in the intake so I told him to pull the valve cover. because there was a valve train problem in that cylinder. He pulled the cover and there was a broken rocker arm. He asked how I knew that by listening to it. My reply was remember I was a tech for 30 years before I was a manager, when I started in the business in 1968 there were no computers. You learned a lot by observation of symptoms.
The scanner computer used in the video: amzn.to/2H3l6dt Autel MK908 Ultimate Wireless Automotive Scan Tool with ADAS, ECU Coding, Full Bi-Directional Control, ABS Brake Bleed, OE-Level All Systems Diagnosis
Eric, you are the best. It is really hard to find someone who is REALLY good at what they do in life. There must be literally thousands of channels on TH-cam that make videos on "How to work on cars," but out shine them all, because your ability to diagnose problems when you make a video. Anyone can replace parts, and hope for the best, but your ability to explain the procedure and inner working of a car is uncanny. Your are a real Gem, and I don,t say that lightly. Your are an honest man with a good heart, and people are lucky to have you work on their car. And no, 99.99% of the people can not do what you do, and even if they could, they choose not to do, because, they are not HONEST. I know it is hard on your body working as a tech, but you would make an excellent teacher in a college when you decide to retire, really. I look forward to your next class room on TH-cam.
I traded a rusty little Dakota for an 03 Ram with a Hemi just like this and the same misfire that the owner couldn't figure out but it idled fine. He replaced all the plugs, coils, and injectors for a ton of money and gave up on it and I was taking a risk on trading my daily driver for it. I did a compression test and that cylinder was alittle low but it would still built like 60 psi or something. I took the valve cover off and I found one push rod had come out from under the rocker and was diagonal and the top was gently against the valve cover. I pulled the rail off, carefully inspected the rod to make sure it wasn't bent, put it back together without asking any questions and that truck ran mint until I sold it months later and still ran great. No clue how it just came out from under the rocker but it did. I know the 03s and 04s have the valve spring problem and your customer was lucky it didn't blow up the engine.
The scanner computer used in the video: amzn.to/2H3l6dt Autel MK908 Ultimate Wireless Automotive Scan Tool with ADAS, ECU Coding, Full Bi-Directional Control, ABS Brake Bleed, OE-Level All Systems Diagnosis
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Best Damn Garage on the Internet. Seriously. I've been a mechanic for over 5 decades. You're the only person (besides me) I'd allow to touch any vehicle of mine. You know your stuff and you explain it clearly. I sure wish every "mechanic" was like that.
A few months back, I had a Grand Caravan with a sideways six with the exact same symptoms. I went “old school” and plugged up my old vacuum gauge and the needle looked like a sewing machine. I killed cylinders until I found the dead one. I got lucky, it was up front. By the time the new spring showed up, I was ready for it and popped it on. Badda-boom, badda-bing!
Don't get me wrong, I love seeing your brake job videos, but it's awesome to see some nitty gritty engine diagnosis/repair stuff. If you can do it, I can do it (just not as well, Doctor O)
That firing sequence: 1 - 8 - 4 - 3 - 6 - 5 - 7 - 2 was instilled in my brain by my next door neighbor (GM mechanic) when I was only 12 yrs old., and I haven't forgot it even 54 yrs later. Just one of those number sequences that one must know if you're going to work on vehicles with a V8 that have this firing sequence. :-)
Meemaw taught me when changing valve springs, locks and retainers use compressed air in the cylinder to hold the valve in place, no need to pull the cylinder head to change valve springs.
Bring that to the dealer and he would have gotten soaked.People are sure lucky to have a top ace mechanic like you Eric.Keep them videos coming alot to be learned from you.
Well… I didn’t want to think you were right hahaha. My 2007 Chrysler 300c was doing exactly this & also a new friend on Facebook. We both ordered brand new PCMs to no avail. I pulled my valve cover once but wasnt looking for a broken valve so I didn’t see a broken valve haha. I check my pushrods to see if that were all still seated. That was a month ago. Here we are today, i paid attention to which exhaust I was getting Gas & smoke smell from & it turned out to be the same side I had the valve cover open for haha. So I pulled the valve cover back off & Yup… Back intake valve is TOAST. Doesn’t look like the valve dropped, but I’ll be pulling it off tomorrow so we will see what the true damage is. I heard no noises so we may be in good shape. I’m just extremely happy it’s internal damage & I found the problem lol. I’ve been thinking it’s PCM related or wiring related because a rat infestation literally JUST happened & I found shit in my engine bay. I’ve been panicking but all rats are dead. Valve springs toast. All is well in my eyes haha. You did a GREAT diagnosis & I literally ignored you for a month until today.
These 5.7 Hemi's are known to have failed roller lifters causing scoring on the cam lobes causing inaccurate valve intakes & exhausts seals thus low cylinder compressions.. The needle bearings of the lifters are falling apart & metal grinding away on the lobe of the cam.. Lucky for this customer just a broken valve spring & not a failed roller lifter a major repair, I traded in my 2011 Challenger R/T for this reason didn't want to deal with this kind of failure if it were to happen lucky for me it didn't happen before I traded it in..The newer 5.7 Hemi's don't seem to have this problem just the older models 2009 thru 2014. just thought I'd share with your viewers.. I love all your vids keep them coming learning something new that I didn't know yesterday is always enlightening..
The 5.7L hemi that went into 2003 and 2004 did have some quality issue mainly related to the valve train. The infamous "hemi tick" was traced back to some push rods being slightly short on length. the "beehive" springs suffered from fatigue an broke.
You are a fabulous mechanic! You diagnose problems with a systematic approach not unlike a surgeon. I wonder what would have happened had he taken it to a dealer. Great video, you are awesome. It must also be nice to call a customer and give them such good news.
I’ve been an automotive, heavy equipment, aircraft, electromechanical and electronics technician for the past 40 years and I can’t help but be impressed with your knowledge of vehicle systems and your good process of troubleshooting. Your analytical skills are the best I’ve seen on the internet. Younger mechanics could really learn from watching how you approach problems.
Diagnosing that busted valve spring is so impressive... I have complete faith in your work Mr O.... shame I cant have the same confidence in the back street mechanic. Why arn't you everywhere, problem solved.....I wish I lived in the USA.
Simply put, there’s no one better than Eric as an all around mechanical professional. Knowledge, customer facing, pragmatic approach, and a true student of the game. Maybe he hates the financial books side of things but likely where Mrs O comes in. The men who showed you the ropes in your younger years were obviously amazing and are blown away proud of you. You are the GOAT.
I wish his shop was in my town, I have a good mechanic shop in town but most of their work is mechanical, little electrical. Eric seems to be the 'jack of all trades'.
n8pu the fact that Eric knows what voltages and readings certain sensors should be off the top of his head shows how good a tech he really is. As an apprentice I really aspire to be that good.
The police around here drive Chargers with Hemi’s. I have replaced several broken valve springs. In fact had to buy a special tool to do it on the chargers.
slowride55 Agreed. The Dodge dealer in Greenville, SC once told me that their techs can’t diagnose a vehicle without a code to read. They only go on scanner codes or replace parts specifically requested by the customer. Literally told me to drive it til the light comes on or suggest a part to throw at it trial and error style.
MeVsMe Not sure what warranty has to do with technicians’ ineptitude in diagnosing. Hadn’t really considered it since the last vehicle I had that was under any kind of warranty was in 1995. However, after considering your proposed excuse, I’m pretty sure that whether a vehicle is under warranty or not has nothing to do with the techs’ knowledge or training level. And, since the instance in question was a 2003 Ram with somewhere between 160-170k in 2015, that would make that 12 year old vehicle ineligible for a warranty but very feasibly diagnosed. In fact, I was able to do it in my driveway with a cheap Actron fuel pressure gauge and an ignition key and my brain- no multi-thousand dollar high tech equipment needed. Which brings me back to my point; Eric did a great job of using his noggin instead of a crutch.
slowride55 I had one break last year on my 70 Z28 the day after doing a few 6,000 + rpm shifts. Even though they all only had about 8,000 miles on them, I replaced them all. Now I have 15 spares and hope I don't ever need them. These were Lunati brand BTW.
When i worked for a dealership we had a ton of these back in the early 2000's . Elgin Made the springs for those and had a hoard of bad ones that were tempered incorrectly . Then chrysler changed spring manuf. shortly thereafter .This brings back memories lol.Great video
Exactly what I suspected. Purchasing dept. at the factory was swayed by the lowest bidder. In the purchasers defense, the management incentivizes and grades their purchasers on cost reduction. So you end up with a supplier that has/had no concept of process control. When in doubt, ship it! This is a systemic problem in American manufacturing, which is why I just bought a 1999 Toyota Camry with 266K miles. The kicker is that I benefit directly from this mentality. My father-in-law, retired at 55, gets a $2k per month pension which allows him to live independent of our help. He now suffers from dementia, probably from sucking too many paint fumes in the 70s and 80s.
Just bought me a hemi dodge ram. 2009 and everything is outta warranty. Got me a whole lotta youtube, a haynes manual and just enough knowledge to be dangerous!!
Okay, after reading the post below me I realized this guy was extremely lucky. I couldn't understand why that valve did not drop right into the cylinder. Talk about a lotto ticket. Unreal. Thanks Eric O. Your videos are awesome
@@mikenonameneeded3485 Did the issue stop at the '05 year? I see a lot of commenters here only mentioning '03-'04 model year Hemis having this issue. My '05 has over 200k now and doesn't seem to have a single problem.
Great use of the pressure transducer. I have found that the shape of the waveform from it as well as the max and min values can give valid diagnostic information. The rate of change of pressure on the up and down slopes can say a lot. Storing the profile for all cylinders and comparing them can point to issues more than a simple compression test can. The rate of filling and emptying of the cylinders is very useful data.
I like the on screen overlays of useful information. Particularly when you overlay the relevant wiring diagram when diagnosing a circuit - certainly helps this dummy follow along :)
That is one blessed truck owner !!! Thanks for another excellent video and an HONEST repair. A lot of shops, sadly, would have gone deeper just for the $$$$$.
i had something similar on 3/8buick lesabre drove me three other guys bonkers would idle perfect complete tune no effect just missed pass idle had compression pulled vale cover looked at both vale springs could not see crack when took apart only one coil broke live and learn you are excellent wish you were closer i,m getting tired need good trustworthy man like you
What an excellent case study! I'm impressed you zoned in on a poor compression situation so fast, even before the leakdown study. I was back in the dust, still thinking of spark and fuel.
I have a 3.6 v6 2011 dodge charger that has a cylinder 1 misfire. It wouldn't stay running without pushing gas and it died at every stop light .i took it to a shop and they called me today and said it was valve spring on cylinder 1. So they are fixing for me right now. Thank god. They can fix it.
Same exact thing happened to my 03 Ram 1500. It's an 03-04 Hemi thing. I put in new Comp Cams 5.7 Hemi valve springs and she runs great now. The truck has 230,000 miles and I revved it out at least 5 times a day, glad to see another person get lucky with the draw on the spring breaking near the top and not dropping the valve. Great diagnosis too!
I really like your channel I was a heavy equipment and truck mechanic for 20 years but I no longer can do this because of a back injury they finally caught up with me I love watching your channel I would love to be able to work on cars everyday but I just do not have the speed it takes to work on a car it's still like to work on trucks but nobody will hire you with a bad back thank you for your content
Yeah. Great video!! You used compressed air in the spark plug hole to keep the intake valve up while changing the spring, right? My buddy Tim showed me that trick on a Hemi about 2 years ago. I thought he was a genius and he said that every mechanic on the planet knew that trick. 😂😂 Thanks so much for the outstanding videos. You are such a good teacher. You may not believe it, but your videos need to be part of a master class. You’re that good!! Thanks again!!
If your compressed air supply is less than the time needed, there is an alternative trick. Lower the piston a bit, feed a piece of thin rope through the plug hole and raise the piston against the wad of rope. Valve is held in place while spring is replaced. When repair is complete, lower piston and pull out the rope. Hopefully, you use a long enough rope that there is plenty on the outside of the engine.
@@JW...-oj5iw This is exactly what I would do "in the field" when compressed air wasn't available. Pretty old school trick. Always tie off the other end of the rope so you don't lose it inside the cylinder.
I have used the rope in the cylinder for over 60 years on aircraft engines. The guy that taught me learned it in 1920. Some things never go out of style.
just had a truck come in the shop and has no compression on cylinder #7, same noise while cranking, same issues as your truck you dealt with. The thing didnt want to stay running and we found when we unplugged the MAP sensor it would run and hold idle but had a solid misfire that would be picked up by our snap on scanner(junk). But thank you !! we tested all the passenger side cylinders and found nothing then found your video and did the drivers back two cylinders and immediately found 5 sitting at 70 psi and 7 was at 0 psi
Our 04 Dodge did the same thing at only 80 thousand miles and since I've probably fixed 4 or 5 more for other folks. I'm pretty sure it was a bad batch of valve springs or something.
The cam shaft has been flat spotted. The roller lifters go bad and lose the needles in the bearings then the lifter wipes out the cam. Becoming a very common issue with the 5.7 l Hemi engine.
@@5jjt Buddy, the 3.6 is an entirely different engine. Its a DOHC engine not a OHV pushrod engine. How can you be watching his videos and not know this????
@@jeffissimo1221 i just did lifters and new cam in my 2012 grand Cherokee a few weeks ago. Those melling hydraulic lifters are failing at a ridiculous rate. Only have 105k on the clock too.
When told that a politician was a humble man, Churchill replied. "Yes, he has much to be humble about!" This mechanic has just enough humility to show he's an expert.
Amazing good fortune. This looked like it was new engine time and all it was was a broken spring which didn't detonate the engine. Dude must be living right.
Glad I came across your video. My wife's 12 Durango had the exact same problem. 2 hours and a $2.50 part it runs great again. Thank you for your great channel.
You are so incredibly knowledgeable and personable in these videos. I normally don't comment but I feel like i have to let you know how much I appreciate your videos. Keep it up south main!
@@TheRonin508 you're right. I saw AFTER I put in the comment there was more, or as Paul Harvey used to say, "The rest of the story." For sure one valve spring was a lot better than valve and piston damage! The Pico proved it's worth!
My best tool is still my brain, been wrenching on my own junk for 46 years. When I started you had points in the distributor, no electronics...miss those days. This hemi owner was very lucky that valve was not bent. You used to be able to use a wood plunger handle to find valvetrain problems...one end firmly placed on valve cover on each cylinder...other end firmly over ear canal...you could tell where problem was by tone difference...old school trick..still works. Some "techs" today are lost without their scanners. Scanners are great, but may not lead you in the right direction for mechanical issues like this. Use your ears...that miss in the starting cycle tells alot. Wish I lived close to your shop, got a 91 Silverado with gauge problems...dead temp and oil pressure moonie gauges...I hate them..lol and so far been unlucky finding replacements..temp shows nothing while running, but shut it down and it registers...oil pinned high...new sensors in both...oil pressure fine. But I check oil and water daily...has over 211,000 on the clock..but odometer has been broke for years....rebuilder engine installed in 2013..I got it in 2017...really cheap. Was Sis in laws truck, she gave it to me when it broke down at our house..lol....I replaced fuel filter..runs good. I would love to replace cluster..if I could find one. Outstanding job as usual Eric.
I was at the dealer the otherday dealing my a defect on my Ram, and was talking with the service manager about interesting problems. He was telling me that they had a influx of bad heads on the 5.2 and 5.67 hemi's cause they where being built so cheap. The problem the exhibited was misfire at idle. The verdit that was causing this turned out to be cracked valve seats, in close proximity to the cooling passages. Which would cause weeping of coolant that would leak across the plug at idle.
knowledge, excellent fault finding skills, and use of test equipment to validate. Picked one component out of any number of possibilities without shooting parts at it. A pleasure to watch.
I bought a new 2004 hemi pickup and in ‘06 went on a 5000 mile retirement sojourn around the US. I drove that vehicle in a spirited but conservative manner, well cared for, and near Pierre, South Dakota the #3 intake valve spring broke! Had it fixed under warranty with no problem. When I got home to Tucson I brought my “baby “ to the dealership for routine service and told the service writer that I had a broken valve spring on the sojourn, and he said “it was # 3 intake, wasn’t it?” Apparently not an uncommon occurrence, I figure!
Smashing visual diagnostic, makes it much clearer to understand. Perhaps the customer didn't want to replace all the old springs because the engine is a bit sad on compression and not worth it.
I had a valve spring explode and disintegrate in my little two cylinder yanmar marine diesel. Valve dropped and got smashed but I got it fixed! Love the videos!
Good video, good fix. Ever tried just bumping the starter with your finger over the spark plug adapter to feel for highest pressure on your finger for top dead center.
It's great to have the electronic testing equipment, you also need to know how to use it and understand it. The bleed down test has been around for many years. Great tool . Great job for finding the actual problem
Eric The Bible says to let your yes be yes, and you no be no, and that everything else is vanity. I’ve been learning the meaning of this for years, so I thought I would share it with you. You have an awesome talent and work ethic, and I enjoy your videos immensely. I just hope that you will take this small criticism with a grain at salt, and keep up the excellent wor. Love your family and your beautiful puppies too. Sincerely, Gary Drumm
Pretty common for the hemi. I'm glad I haven't broken any springs on mine as much as I over-rev it. Common misfire issues on a hemi are broken springs, dropped valve seats, seized roller lifter, blown head gasket, bad coils, and weak injectors (the ones they put on there are crap).
What a job, bet the customer was super pleased, from possible junk to good. How long did it take to swap the valve after the initial diagnosis. Again fantastic skills, job and customer service, not to mention fantastic video. Cheers Eric.
Super lucky that it didn't touch the valve or piston face or guide. The diagnosis was legit. I liked how you test the theory before hand. Nicely done. Keep up the awesome content Mr. O.
Immediately after you said the EGR was probably aftermarket junk, the video was interrupted by an ad for O’Reillys. The leading supplier in aftermarket junk. That was perfect timing.
I have seen several Hemi's with broken valve springs and rocker arms. When I was Fixed operations manager at a full line Chrysler dealer one of our rookie, fresh out the cap program, techs had one with a misfire code. He swapped the coil and injector and the misfire stayed in the same cylinder. He said he didn't know what was wrong because it checked out electronically. I told him to rev it up, it was popping in the intake so I told him to pull the valve cover. because there was a valve train problem in that cylinder. He pulled the cover and there was a broken rocker arm. He asked how I knew that by listening to it. My reply was remember I was a tech for 30 years before I was a manager, when I started in the business in 1968 there were no computers. You learned a lot by observation of symptoms.
grant wright Most times if everything checks out electrically. the problem is mechanical.
And then everyone clapped
Nice fix! I learned a lot by listening to engines!!
Computers have made millennials dumber than a box of motherboards. Turn off the power and they're USELESS.
@@joeashbubemma I'm a technician and I'm better without computer. Im 29. Don't forget gen z is old enough to vote now lol
That dude was so lucky! Awesome video, thanks for sharing!
No kidding! Eric should have called him and said, "Dude, you need to go out and buy a lottery ticket. Today!"
No joke waaaayy cheaper than even a junkyard motor.
What a saver. Winner winner 🐔 dinner
The scanner computer used in the video: amzn.to/2H3l6dt Autel MK908 Ultimate Wireless Automotive Scan Tool with ADAS, ECU Coding, Full Bi-Directional Control, ABS Brake Bleed, OE-Level All Systems Diagnosis
He was lucky he found a shop that could diagnose it and fix it, with the minimal repair that will get the truck reliable again.
Eric, you are the best. It is really hard to find someone who is REALLY good at what they do in life. There must be literally thousands of channels on TH-cam
that make videos on "How to work on cars," but out shine them all, because your ability to diagnose problems when you make a video. Anyone can replace
parts, and hope for the best, but your ability to explain the procedure and inner working of a car is uncanny. Your are a real Gem, and I don,t say that lightly.
Your are an honest man with a good heart, and people are lucky to have you work on their car. And no, 99.99% of the people can not do what you do, and even
if they could, they choose not to do, because, they are not HONEST. I know it is hard on your body working as a tech, but you would make an excellent teacher
in a college when you decide to retire, really. I look forward to your next class room on TH-cam.
This post ---> example of what that flash and glitter are for, typical consumer ignorant of everyday shop practices.......
@@themanthemyththelegend1392 Eric is very good but he cant be the only good technician otherwise you won't see three year old vehicles on the road.
Great diag, Eric. Probably saved the customer from a lesser mechanic telling them to scrap it.
I traded a rusty little Dakota for an 03 Ram with a Hemi just like this and the same misfire that the owner couldn't figure out but it idled fine. He replaced all the plugs, coils, and injectors for a ton of money and gave up on it and I was taking a risk on trading my daily driver for it. I did a compression test and that cylinder was alittle low but it would still built like 60 psi or something. I took the valve cover off and I found one push rod had come out from under the rocker and was diagonal and the top was gently against the valve cover. I pulled the rail off, carefully inspected the rod to make sure it wasn't bent, put it back together without asking any questions and that truck ran mint until I sold it months later and still ran great. No clue how it just came out from under the rocker but it did. I know the 03s and 04s have the valve spring problem and your customer was lucky it didn't blow up the engine.
Cap
Another great video Eric. Thank you for the bonus footage and closure!!
The scanner computer used in the video: amzn.to/2H3l6dt Autel MK908 Ultimate Wireless Automotive Scan Tool with ADAS, ECU Coding, Full Bi-Directional Control, ABS Brake Bleed, OE-Level All Systems Diagnosis
Best Damn Garage on the Internet. Seriously. I've been a mechanic for over 5 decades. You're the only person (besides me) I'd allow to touch any vehicle of mine. You know your stuff and you explain it clearly. I sure wish every "mechanic" was like that.
Learning to be one like him myself.
the customer have found an excellent and honest mechanic!! lucky! just awesome we need more honest people:)
A few months back, I had a Grand Caravan with a sideways six with the exact same symptoms. I went “old school” and plugged up my old vacuum gauge and the needle looked like a sewing machine. I killed cylinders until I found the dead one. I got lucky, it was up front. By the time the new spring showed up, I was ready for it and popped it on. Badda-boom, badda-bing!
Don't get me wrong, I love seeing your brake job videos, but it's awesome to see some nitty gritty engine diagnosis/repair stuff. If you can do it, I can do it (just not as well, Doctor O)
Love his engine diag too... but I enjoy all his videos, just a big engine fan though :D
With his diagnosis skill set he may very well be a good doctor!
This video just saved my life…. Shop tried to charge me 14,000 for a new engine in my 6.4l… this was the only issue
Eric O., in the know! Always an honest viddy-yo!
That firing sequence: 1 - 8 - 4 - 3 - 6 - 5 - 7 - 2 was instilled in my brain by my next door neighbor (GM mechanic) when I was only 12 yrs old., and I haven't forgot it even 54 yrs later. Just one of those number sequences that one must know if you're going to work on vehicles with a V8 that have this firing sequence. :-)
Meemaw taught me when changing valve springs, locks and retainers use compressed air in the cylinder to hold the valve in place, no need to pull the cylinder head to change valve springs.
Richard Foster at the end you can see he did that meemaw taught him well
Bring that to the dealer and he would have gotten soaked.People are sure lucky to have a top ace mechanic like you Eric.Keep them videos coming alot to be learned from you.
Lucky that Mr Valve never met with Ms Piston and had a party.
Shouldn't that be Mr. Piston? Just a min I will ask Mrs. Allen
When they do, they go on a real bender
very common on those junks too
When they get screwed, you could say that mistakes were made... ;-)
@@steveallen5496 Mr Piston and Mrs Cylinder, Mr Valve and Mrs Valve seat/ guide.
This guy should have his own show on Motor Trend Network. He is a great teacher & very good in front of a camera. Dude can fix anything quickly
CALLED IT!!!
valve train issues are super common on the 5.7L Hemi, particularly on the newer ones
Especially the 4.7L
please define "newer" this is a 15 year old truck......
Well… I didn’t want to think you were right hahaha. My 2007 Chrysler 300c was doing exactly this & also a new friend on Facebook. We both ordered brand new PCMs to no avail. I pulled my valve cover once but wasnt looking for a broken valve so I didn’t see a broken valve haha. I check my pushrods to see if that were all still seated. That was a month ago. Here we are today, i paid attention to which exhaust I was getting Gas & smoke smell from & it turned out to be the same side I had the valve cover open for haha. So I pulled the valve cover back off & Yup… Back intake valve is TOAST. Doesn’t look like the valve dropped, but I’ll be pulling it off tomorrow so we will see what the true damage is. I heard no noises so we may be in good shape. I’m just extremely happy it’s internal damage & I found the problem lol. I’ve been thinking it’s PCM related or wiring related because a rat infestation literally JUST happened & I found shit in my engine bay. I’ve been panicking but all rats are dead. Valve springs toast. All is well in my eyes haha. You did a GREAT diagnosis & I literally ignored you for a month until today.
Could of took this guy to the cleaners with this amazing repair.Testament to Eric's integrity !!!
like a rock ... have
Hey, we don't know what he told the guy. Just kidding.
3rd gen Hemi power!! Maybe Toyota has some extra valve springs, valves and valve seats they can supply RAM with.
You are the man. Diagnosis extraordinaire. Customer lucked out; with no dropped valve into piston. Whew!
These 5.7 Hemi's are known to have failed roller lifters causing scoring on the cam lobes causing inaccurate valve intakes & exhausts seals thus low cylinder compressions.. The needle bearings of the lifters are falling apart & metal grinding away on the lobe of the cam.. Lucky for this customer just a broken valve spring & not a failed roller lifter a major repair, I traded in my 2011 Challenger R/T for this reason didn't want to deal with this kind of failure if it were to happen lucky for me it didn't happen before I traded it in..The newer 5.7 Hemi's don't seem to have this problem just the older models 2009 thru 2014. just thought I'd share with your viewers.. I love all your vids keep them coming learning something new that I didn't know yesterday is always enlightening..
The 5.7L hemi that went into 2003 and 2004 did have some quality issue mainly related to the valve train. The infamous "hemi tick" was traced back to some push rods being slightly short on length. the "beehive" springs suffered from fatigue an broke.
This engine clearly has the tick. I could hear it.
Those are known for the cam to go flat also
In those cases it was usually a roller lifter failure.
That's one of the good things about a pushrod engine: These kind of repairs are much easier than on a OHC or DOHC engine.
You are a fabulous mechanic! You diagnose problems with a systematic approach not unlike a surgeon. I wonder what would have happened had he taken it to a dealer. Great video, you are awesome. It must also be nice to call a customer and give them such good news.
I think you're giving surgeons too much credit
I’ve been an automotive, heavy equipment, aircraft, electromechanical and electronics technician for the past 40 years and I can’t help but be impressed with your knowledge of vehicle systems and your good process of troubleshooting. Your analytical skills are the best I’ve seen on the internet. Younger mechanics could really learn from watching how you approach problems.
Diagnosing that busted valve spring is so impressive... I have complete faith in your work Mr O.... shame I cant have the same confidence in the back street mechanic.
Why arn't you everywhere, problem solved.....I wish I lived in the USA.
I like your editing of punching the normal values overlay out of the way, lol.
Thats an amazing repair, customer got lucky and you sir are the man, the myth and the automotive legend.
Simply put, there’s no one better than Eric as an all around mechanical professional. Knowledge, customer facing, pragmatic approach, and a true student of the game. Maybe he hates the financial books side of things but likely where Mrs O comes in.
The men who showed you the ropes in your younger years were obviously amazing and are blown away proud of you. You are the GOAT.
Man, if only you or ScannerDanner were out on the west coast teaching, i think i'd be interested in a career change. Great diag and fix.
Right there with you on this one..
I wish his shop was in my town, I have a good mechanic shop in town but most of their work is mechanical, little electrical. Eric seems to be the 'jack of all trades'.
n8pu the fact that Eric knows what voltages and readings certain sensors should be off the top of his head shows how good a tech he really is. As an apprentice I really aspire to be that good.
@@vader2774 right. As a diy repair guy i fix my friends and my moms car and eric has helped me alot with the knowledge he has bestowed to me.
Scannerdanner is boring
Nice diagnostic and repair Eric, congrats! Glad to see Ms. Marie again, even only for few seconds...
The police around here drive Chargers with Hemi’s. I have replaced several broken valve springs. In fact had to buy a special tool to do it on the chargers.
Lucky for the customer that the repair wasn’t too costly!
Most people would've taken twice the time to diagnose this because there isn't a fault code for "replace intake valve spring on cylinder 5."
slowride55 Agreed. The Dodge dealer in Greenville, SC once told me that their techs can’t diagnose a vehicle without a code to read. They only go on scanner codes or replace parts specifically requested by the customer. Literally told me to drive it til the light comes on or suggest a part to throw at it trial and error style.
Lol so true, there is so much the computer can detect without more sensors, logic, etc
@@fomoco300k I can see that only because of warranty. Regular diagnosis shouldnt be a problem.
MeVsMe Not sure what warranty has to do with technicians’ ineptitude in diagnosing. Hadn’t really considered it since the last vehicle I had that was under any kind of warranty was in 1995. However, after considering your proposed excuse, I’m pretty sure that whether a vehicle is under warranty or not has nothing to do with the techs’ knowledge or training level. And, since the instance in question was a 2003 Ram with somewhere between 160-170k in 2015, that would make that 12 year old vehicle ineligible for a warranty but very feasibly diagnosed. In fact, I was able to do it in my driveway with a cheap Actron fuel pressure gauge and an ignition key and my brain- no multi-thousand dollar high tech equipment needed. Which brings me back to my point; Eric did a great job of using his noggin instead of a crutch.
slowride55 I had one break last year on my 70 Z28 the day after doing a few 6,000 + rpm shifts. Even though they all only had about 8,000 miles on them, I replaced them all. Now I have 15 spares and hope I don't ever need them. These were Lunati brand BTW.
How you don't have people bringing their cars from 1000's of miles away is beyond me! I sure wish I lived closer to your shop!
When i worked for a dealership we had a ton of these back in the early 2000's . Elgin Made the springs for those and had a hoard of bad ones that were tempered incorrectly . Then chrysler changed spring manuf. shortly thereafter .This brings back memories lol.Great video
Exactly what I suspected. Purchasing dept. at the factory was swayed by the lowest bidder. In the purchasers defense, the management incentivizes and grades their purchasers on cost reduction. So you end up with a supplier that has/had no concept of process control. When in doubt, ship it! This is a systemic problem in American manufacturing, which is why I just bought a 1999 Toyota Camry with 266K miles. The kicker is that I benefit directly from this mentality. My father-in-law, retired at 55, gets a $2k per month pension which allows him to live independent of our help. He now suffers from dementia, probably from sucking too many paint fumes in the 70s and 80s.
Just bought me a hemi dodge ram. 2009 and everything is outta warranty. Got me a whole lotta youtube, a haynes manual and just enough knowledge to be dangerous!!
Mr. O: Patience Level=Ultra-Infinity Level/ God Mode.
Okay, after reading the post below me I realized this guy was extremely lucky. I couldn't understand why that valve did not drop right into the cylinder. Talk about a lotto ticket. Unreal. Thanks Eric O. Your videos are awesome
Yep, my 2004 ram hemi broke the identical valve spring at about 200k. Finally got rid of it at 302k. Heck of a truck.
@Don Quixote I have a 05 also . fingers crossed . Ive had it for around 4 yrs . 150 k on motor .
It was only about a $350 repair at the dealer. Not bad. Eric O likely better price and way better quality.
@@mikenonameneeded3485 Did the issue stop at the '05 year? I see a lot of commenters here only mentioning '03-'04 model year Hemis having this issue. My '05 has over 200k now and doesn't seem to have a single problem.
I dont know.
You are the best mechanic I have ever seen . You should move to Oregon where there is no rust . We need someone like you here .
Great use of the pressure transducer. I have found that the shape of the waveform from it as well as the max and min values can give valid diagnostic information. The rate of change of pressure on the up and down slopes can say a lot. Storing the profile for all cylinders and comparing them can point to issues more than a simple compression test can. The rate of filling and emptying of the cylinders is very useful data.
I like the on screen overlays of useful information. Particularly when you overlay the relevant wiring diagram when diagnosing a circuit - certainly helps this dummy follow along :)
Love your videos. Thank you for taking the time to make them and ease some of us backyard mechanics like myself.
I really like how you show the test equipment and the easy solution in a practical problem something that can happen to anyone
That is one blessed truck owner !!! Thanks for another excellent video and an HONEST repair. A lot of shops, sadly, would have gone deeper just for the $$$$$.
i had something similar on 3/8buick lesabre drove me three other guys bonkers would idle perfect complete tune no effect just missed pass idle had compression pulled vale cover looked at both vale springs could not see crack when took apart only one coil broke live and learn you are excellent wish you were closer i,m getting tired need good trustworthy man like you
Another great job Mr. O and I expect one very happy customer able to get more use out of his Ram Hemi!
Had this happen to me several months back. By the grace of whatever is holy, the valve never let go.
What an excellent case study! I'm impressed you zoned in on a poor compression situation so fast, even before the leakdown study. I was back in the dust, still thinking of spark and fuel.
I have a 3.6 v6 2011 dodge charger that has a cylinder 1 misfire. It wouldn't stay running without pushing gas and it died at every stop light .i took it to a shop and they called me today and said it was valve spring on cylinder 1. So they are fixing for me right now. Thank god. They can fix it.
Same problem on my 2003 1500 - replaced ALL the valve springs with the springs from the 6.4 Hemi and haven't had an issue in over 50k miles.
Same exact thing happened to my 03 Ram 1500. It's an 03-04 Hemi thing. I put in new Comp Cams 5.7 Hemi valve springs and she runs great now. The truck has 230,000 miles and I revved it out at least 5 times a day, glad to see another person get lucky with the draw on the spring breaking near the top and not dropping the valve. Great diagnosis too!
great! thanks for the bonus footage! it lives to die another day.
Just bought an 05 with low miles. I am now paying close attention to all these videos.
Erick O, your an amazing mechanic. Great video.
I really like your channel I was a heavy equipment and truck mechanic for 20 years but I no longer can do this because of a back injury they finally caught up with me I love watching your channel I would love to be able to work on cars everyday but I just do not have the speed it takes to work on a car it's still like to work on trucks but nobody will hire you with a bad back thank you for your content
Yeah. Great video!! You used compressed air in the spark plug hole to keep the intake valve up while changing the spring, right? My buddy Tim showed me that trick on a Hemi about 2 years ago. I thought he was a genius and he said that every mechanic on the planet knew that trick. 😂😂
Thanks so much for the outstanding videos. You are such a good teacher. You may not believe it, but your videos need to be part of a master class. You’re that good!!
Thanks again!!
Yeah they taught that compressed-air trick in automotives class in high school back in the 60's.
If your compressed air supply is less than the time needed, there is an alternative trick. Lower the piston a bit, feed a piece of thin rope through the plug hole and raise the piston against the wad of rope. Valve is held in place while spring is replaced. When repair is complete, lower piston and pull out the rope. Hopefully, you use a long enough rope that there is plenty on the outside of the engine.
@@JW...-oj5iw This is exactly what I would do "in the field" when compressed air wasn't available. Pretty old school trick. Always tie off the other end of the rope so you don't lose it inside the cylinder.
I have used the rope in the cylinder for over 60 years on aircraft engines. The guy that taught me learned it in 1920. Some things never go out of style.
AKJeeper yep if the valve drops while using compressed air your pretty much stuck with pulling the head
just had a truck come in the shop and has no compression on cylinder #7, same noise while cranking, same issues as your truck you dealt with. The thing didnt want to stay running and we found when we unplugged the MAP sensor it would run and hold idle but had a solid misfire that would be picked up by our snap on scanner(junk). But thank you !! we tested all the passenger side cylinders and found nothing then found your video and did the drivers back two cylinders and immediately found 5 sitting at 70 psi and 7 was at 0 psi
Our 04 Dodge did the same thing at only 80 thousand miles and since I've probably fixed 4 or 5 more for other folks. I'm pretty sure it was a bad batch of valve springs or something.
@Rusty Highlander Dodge nuff said.
Defective roller lifters that loose the needle bearings and flat spot the cam
Well documented
Nice diagnosis. Right to the point. You made that owner a very happy guy. Gotta love a happy ending!
The cam shaft has been flat spotted. The roller lifters go bad and lose the needles in the bearings then the lifter wipes out the cam. Becoming a very common issue with the 5.7 l Hemi engine.
There's been many videos in recent weeks highlighting exactly what you're describing. Scary.
Is this true on the Pentastar 3.6L too?
@@5jjt I hope not. It's in my Jeep! I think some 2012s had some lifter noise issues.
@@5jjt Buddy, the 3.6 is an entirely different engine. Its a DOHC engine not a OHV pushrod engine. How can you be watching his videos and not know this????
@@jeffissimo1221 i just did lifters and new cam in my 2012 grand Cherokee a few weeks ago. Those melling hydraulic lifters are failing at a ridiculous rate. Only have 105k on the clock too.
When told that a politician was a humble man, Churchill replied. "Yes, he has much to be humble about!"
This mechanic has just enough humility to show he's an expert.
I enjoy your logical method of troubleshooting, great video Eric....
Amazing good fortune. This looked like it was new engine time and all it was was a broken spring which didn't detonate the engine. Dude must be living right.
Bonus footage is the best!
Glad I came across your video. My wife's 12 Durango had the exact same problem. 2 hours and a $2.50 part it runs great again. Thank you for your great channel.
Keep it up Eric your gonna be a great mechanic one day 😂
You are so incredibly knowledgeable and personable in these videos. I normally don't comment but I feel like i have to let you know how much I appreciate your videos. Keep it up south main!
Great Testing! Quick and clean!
Good way for us to start the day, bad for customer.
Not really... Tht customer got really lucky that valve didn't get impacted.
@@TheRonin508 you're right. I saw AFTER I put in the comment there was more, or as Paul Harvey used to say, "The rest of the story." For sure one valve spring was a lot better than valve and piston damage! The Pico proved it's worth!
My best tool is still my brain, been wrenching on my own junk for 46 years. When I started you had points in the distributor, no electronics...miss those days. This hemi owner was very lucky that valve was not bent. You used to be able to use a wood plunger handle to find valvetrain problems...one end firmly placed on valve cover on each cylinder...other end firmly over ear canal...you could tell where problem was by tone difference...old school trick..still works. Some "techs" today are lost without their scanners. Scanners are great, but may not lead you in the right direction for mechanical issues like this. Use your ears...that miss in the starting cycle tells alot. Wish I lived close to your shop, got a 91 Silverado with gauge problems...dead temp and oil pressure moonie gauges...I hate them..lol and so far been unlucky finding replacements..temp shows nothing while running, but shut it down and it registers...oil pinned high...new sensors in both...oil pressure fine. But I check oil and water daily...has over 211,000 on the clock..but odometer has been broke for years....rebuilder engine installed in 2013..I got it in 2017...really cheap. Was Sis in laws truck, she gave it to me when it broke down at our house..lol....I replaced fuel filter..runs good. I would love to replace cluster..if I could find one. Outstanding job as usual Eric.
I was at the dealer the otherday dealing my a defect on my Ram, and was talking with the service manager about interesting problems. He was telling me that they had a influx of bad heads on the 5.2 and 5.67 hemi's cause they where being built so cheap. The problem the exhibited was misfire at idle. The verdit that was causing this turned out to be cracked valve seats, in close proximity to the cooling passages. Which would cause weeping of coolant that would leak across the plug at idle.
a 5.2 hemi?? a 5.67 hemi?
The 5.2 was a 318 cubic inch, and not a hemi. Not sure how you come up with a 5.67 hemi ?
@@bertgrau9246 typo that I didn't catch. I am dyslexic too, so things often get flipped unintentionally.
You earned your pay today great job Eric, been watching for a number of years now, you are simply the best
Back from death's door! Now it'll be New York rust's turn to take a whack! As usual, excellent work.
Those engines have a distinct sound. I can recognize it instantly.
Made my day! Been "jonesen" for an SMA vid.
knowledge, excellent fault finding skills, and use of test equipment to validate. Picked one component out of any number of possibilities without shooting parts at it. A pleasure to watch.
Great work Eric-O. Love seeing the pico and wps stuff. Keep it up
I bought a new 2004 hemi pickup and in ‘06 went on a 5000 mile retirement sojourn around the US. I drove that vehicle in a spirited but conservative manner, well cared for, and near Pierre, South Dakota the #3 intake valve spring broke! Had it fixed under warranty with no problem. When I got home to Tucson I brought my “baby “ to the dealership for routine service and told the service writer that I had a broken valve spring on the sojourn, and he said “it was # 3 intake, wasn’t it?” Apparently not an uncommon occurrence, I figure!
I wish I could find a mechanic like you out in my parts. Im tempted to drive out to you for some fixings.
Smashing visual diagnostic, makes it much clearer to understand.
Perhaps the customer didn't want to replace all the old springs because the engine is a bit sad on compression and not worth it.
SMA for the win!
I had a valve spring explode and disintegrate in my little two cylinder yanmar marine diesel. Valve dropped and got smashed but I got it fixed! Love the videos!
Good video, good fix.
Ever tried just bumping the starter with your finger over the spark plug adapter to feel for highest pressure on your finger for top dead center.
Gregory Birulkin That’s old school, plus he wouldn’t get to use his expensive diagnostic equipment lol
You would have to have big fat and long fingers to get to the holes
It's great to have the electronic testing equipment, you also need to know how to use it and understand it. The bleed down test has been around for many years. Great tool .
Great job for finding the actual problem
Got lucky with just a broken spring, my brother's ram had to get the cam replaced.
Eric
The Bible says to let your yes be yes, and you no be no, and that everything else is vanity.
I’ve been learning the meaning of this for years, so I thought I would share it with you. You have an awesome talent and work ethic, and I enjoy your videos immensely. I just hope that you will take this small criticism with a grain at salt, and keep up the excellent wor.
Love your family and your beautiful puppies too.
Sincerely, Gary Drumm
Dude got lucky with that one.
ITS A DODGE -------A PIECE OF SHIT
LIKE FORD
BREAKS DOWN ALL THE TIME
@@ekop1778 all the big 3 have a few stinkers. Dodge wasn't as bad as it is now but it's by no means any worse than any other manufacturer.
Pretty common for the hemi. I'm glad I haven't broken any springs on mine as much as I over-rev it. Common misfire issues on a hemi are broken springs, dropped valve seats, seized roller lifter, blown head gasket, bad coils, and weak injectors (the ones they put on there are crap).
Junk a hemi with a fancy cold air intake? No way. Crank it Marie.
Eric, you do know your craft. Saved customer big time.
What a job, bet the customer was super pleased, from possible junk to good.
How long did it take to swap the valve after the initial diagnosis.
Again fantastic skills, job and customer service, not to mention fantastic video.
Cheers Eric.
Super lucky that it didn't touch the valve or piston face or guide. The diagnosis was legit. I liked how you test the theory before hand. Nicely done. Keep up the awesome content Mr. O.
NOW THAT WAS A GOOD VIDEO SIR THANK YOU !
Seen this many times. Always have been amazed how losing one cylinder can make a Hemi ran so bad or not at all.
pretty clean under the valve cover for that mileage, must be a good maintenance routine.
One lucky customer, Typically when you start seeing no compression on a cylinder, it starts to get expensive! Awesome video!