EXPLODED! GM 6.2L LT1/L86 Gen5 V8 Engine Teardown. 2015 Escalade Catastrophic Failure Explained

[@johnmortison5763]

The wrist pin yelled "I'm free" and is now relaxing on the side of the road somewhere.

[@brand-x7049]

Along with the top end of the connecting rod. o!O

[@NoName-qs6ei]

And it's in perfect condition.

[@ladam836]

Now I know why there are random wrist pins in the road.

[@williamfreelove7755]

The wrist pin said...Dobby is free

[@jerrykorman7770]

Lol

[@brianstewart2401]

best part of Eric's vids! No Adds, No Filler, No 5 minute intro! So happy to not have to watch VPN commercials.

[@samholdsworth420]

One day he will sell out

[@samholdsworth420]

@@tdotw77 of course there's ads if you don't pay for KZbin premium you dingus 😂 He's talking about paid sponsorship in the video

[@tdotw77]

​@@samholdsworth42010 4 dip$h!t. Sorry for being mistaken & not as sharp as you. I can tell you're sharp as a wet cotton ball & you're right up there with Einstein

[@HellaNorCal916]

What till he goes bold. He'll jump on some of that sweet "Keeps" sponsor cash. 😂

[@chadhaire1711]

I dont think you have to worry about Chevy ads

[@DJRatAttack]

I can never get enough of your engine teardowns they are the most entertaining videos I watch and I always look forward to seeing the new ones

[@metalted6128]

Eric does a great job holding my attention!! Love his channel!!

[@peterwilding1203]

Best channel on KZbin.

[@lancelyons7021]

!¹9​@@metalted6128

[@jeffreyshepherd8488]

What it's not Saturday?!?! You spoil us. Happy memorial day!!

[@rick_fortune]

Ahhhh the old electrical problem. Yeah electrical. The escaping wrist pin knocked the alternator off :) For as it is written: "He who is without oil, shall cast the first rod". Compressions 9.4:1 :D

[@TheMhannah100]

I don't know what is so mesmerizing about a blown up engine teardown. But I love it!

[@FastSS02]

Two thumbs up for getting in "banana phone" "Beastie Boys" and "Monty Python" references all in one episode!

[@dbqgal8172]

My thoughts exactly, dude is ON FLEEK (Sorry I said “on fleek”…I hate it, yet it felt so right)

[@teemoL]

Does d.i. leave us to believe we should have cleaner fuel, or just go back to the ports?

[@spitupstars]

you forgot the Anchor Man reference

[@JohnSmith-pl2bk]

@@teemoL Both. DI for fuel economy... but also supplementary port injectors working in tandem with the DI under certain engine conditions to wash the ports of carbon... like some Toyota motors do.....

[@christian_urocar]

@@spitupstars time stamp?

[@santaclause2875]

Lots of folks these days just don't check their oil. My daughter (age 44) dropped by the other day for a visit. Said her car (an Infinity QX-80, 2014) was making a 'rattling sound' on cold start up. Checked the oil, it was FIVE QUARTS LOW. It holds six. I said, 'hey hon, when was the last time you checked the oil?' She replied; 'oh, the oil light never comes on when I'm driving, so I figured it must be full of oil'. Many people still believe the oil pressure idiot light is the oil LEVEL indicator light.

[@ostrich67]

Unfortunately lots of cars have no dipstick now so the idiot light is all there is.

[@Offroader451-rm5jz]

@@ostrich67 What car has no dipstick? Never heard of this

[@mind.hacker9996]

@@Offroader451-rm5jzmost bmws starting 2007

[@carguy7627]

@@ostrich67This is true, my car has no dipstick. However, it does have an oil level gauge that you can check via the computer. I hate relying on sensors. The dipstick seems like a technology that was perfect since it was easy to use and almost fail proof. I don’t see any upside to getting rid of them. I wonder what I’m missing.

[@santaclause2875]

@@carguy7627 Corporate 'bottom line'. Any way whatsoever to trim two cents from production costs, they will do it.

[@Madpegasusmax]

Some one watching this video : " a ha , now I know where the wrist pin that entered my windshield when I was cruising on the Highway came from "

[@wudznutt6732]

I loved the "exploded view' of the destroyed piston.

[@rmp5s]

Never ceases to amaze me how COMPLETELY DESTROYED pistons and rods get when this sort of thing happens.

[@Jihadbearzwithgunz]

Like magic the parts are just gone they got sent somewhere at the speed of Mach Jesus

[@stephenw2992]

Hammer mills and crank shafts are basically the same technology

[@rmp5s]

@@stephenw2992 Yup. Pretty much. Pulverizes the friggin rod and piston...incredible sometimes.

[@stephenw2992]

This engine was some of its best work to date

[@giggiddy]

There's absolutely no reason to blow a hole in the side of an engine. Especially a $80k suv that typically runs at 3k rpm or less for 90% of its life. Must have been some wannabe poser dumb azz driving like a straight fool. I see these parked in front of ghetto apartments all the time. They wake up around 10pm and everyone in the house takes turns driving the piss out of them all night long. Lol😮

[@q8mechanic427]

My L87 engine seized at 12k on my 2022 Yukon AT4 6.2. When torn down found all rod bearings seized and welded to the crank which was discolored from heat. Found only one bad main bearing. When researched found that my issue was very common. Also found that my bearings are same part number as the corvette LT2 engine. My engine uses 0W20 oil while the corvette LT2 uses 0W40 mobil 1. The Corvette LT2 doesn't suffer from my issue. I guess oil is the culprit where it damaged a main bearing which leaked oil pressure and starved the rods.

[@robsorgdrager8477]

I was a GM tech when these were introduced. Almost immediately they had problems. I had one give up backing off the delivery trailer from the rail yard. They didn't like when it got below 40° f . They constantly have misfires, the mechanical fuel pumps fail , the afm fails, the rings fail, the head gaskets fail honestly the only redeeming quality is a toddler can tear these down and rebuild them. Your bent push rod is most likely from a failed afm lifter...super common. I loved it when they managed to get wedged in the bore and you'd have to replace the 8 thousand mile engine because you broke your pry bar and slide hammer trying to remove a hammer forged lifter .

[@7x779]

I thought the GM truck and suv V8s were Bulletproof I just recommended one to a friend. I think it's a 2013 Yukon with a 6.2 add 156,000 me, is that prone to have these failures? Should I tell him to stop before he goes to look at it?

[@fox9054]

@@7x779the 2013 had a vortec LS based engine, not the same as this video and very reliable

[@parandersson6541]

@@7x779 they were, the LS3 is bulletproof

[@MikeSmith-nu9wt]

I got a 09 Ls9 out of a smashed yukon denali 128,000 miles , it's older sister , i was just gonna afm delete it , but the more i think about it , i'll probably tear it all the way down , got the whole car a 6 speed awd

[@CLBurrough]

I wonder if it's because GM didn't use parts that are stronger enough to stand up to the horsepower.

[@linuxguy1199]

That's the beauty of a V8, if one of the connecting rods ejects itself, you still have 7 more!

[@litz13]

Just like flying a B52

[@frederickking1660]

That's to get you home

[@OtherWorldExplorers]

Holy cow that was a lot of part numbers in the oil pan

[@indaychangtexas1046]

I'm going out to check my oil again.

[@SmittySmithsonite]

You can have all the oil you want in the crankcase ... but if the engineering causes aeration, or starvation of one section, it's all going to come unglued, and VIOLENTLY! 😬

[@johnfranklin5277]

Changed my oil yesterday..IM GOOD.

[@craigquann]

It's the high pressure fuel pump. It leaks into the oil when it fails. And once enough vapor builds up, the PCV system dumps it into the intake and... well...

[@puncht37]

It did fix itself. It`s not knocking anymore.

[@sartainja]

Kind of like the guy who plays with his loaded pistol.

[@braaap6292]

My friend had his 2015 LT1 vette lock a rod bearing while cruising down the highway. This caused the rod to snap, which turned the rod into a giant machete that annihilated the block, oil pan, piston, and even the cam. One of the most impressive failures I've seen. Car only had 45k miles and was unmodified and properly maintained. These engines had terrible build quality, heard of soooo many catastrophic bottom end failures with these LT motors.

[@1967vintage]

As a layman I’ve learnt more about engines in watching two of your videos than anything else. It strikes me this is an excellent way for teaching. It’s also something a novice could do at low risk. Buy a blown engine and dismantle and investigate the cause.

[@davidgrisco1939]

"I hear you knocking, but you can't come in I hear you knocking, go back where you been" - Dave Edmunds 1971

[@MrTheHillfolk]

What ,no love for Little Richard? He started the whole mess😂

[@stravis3269]

Word up hommie

[@AliceRedick]

Maybe, "I hear you knockin', damn it let me out". Wrist pin mania.

[@robertwest3093]

You’re spoiling us with these multiple uploads. No complaints from me!

[@Chippy569]

@22:13 Piston Nugget?! Nah man that's a full on Piston Tender, maybe even a Piston Finger

[@sartainja]

He is going to sell T-shirts.

[@mitchrothermel8157]

2024 GM 5.3l oil filter full of metal affected oil pressure at 790 miles. Dealership said “machining debris”. Sent out sample for analysis. It now run smooth. Will check oil filter and sample again @1400 miles.

[@brandonrohrbacker6595]

Being memorial day, i didnt expect to see a video today. But ill be honest, im glad its here! Both myself and my 2 year old son love your videos, keep doing what your doing!

[@concrete2733]

Eric! They do stamp the VIN into the engine. On the small vertical tab on the driver side rear of the block. Directly below the driver side head. They also stamp it into the transmission. Cheers

[@george2113]

I would have commented separately if possible. Do the cylinders have ferrous liners or just aluminum?

[@craigquann]

No such thing as an aluminum liner.

[@george2113]

@@craigquann I was referring to an aluminum block without liners!

[@craigquann]

@george2113 no such thing. That's what I mean.

[@markleggett3944]

@@craigquann The wonderful Chevy Vega with it's aluminum/silicon block with no cylinder sleeves was another great idea from GM.

[@flotowncomputerguy6243]

The old 5.3s were the opposite of this. I saw many trucks with 300k+ miles still running and driving. The bodies were dented but the engines never gave up

[@karlschauff7989]

That's what the EPA took from us. All the talk about the US being a free market but consumers didn't demand big V8's with ultra low emissions and cylinders that shut off to gain a tenth of one MPG.

[@ramiromartinez4344]

I deleted MDS(cylinder shutdown) from my hemi as soon as I purchased my truck 2years old right out of warranty

[@MrGamman3yt]

Whats the solution here?

[@ramiromartinez4344]

@@MrGamman3yt turn off cylinder shut down

[@gregorylyon1004]

These are the newer government motors. All aluminum to reduce weight for fuel mileage. AFM and DOD equal POS. LOL

[@johnmarshjr928]

You have to have a catch can on Ls/ Lt motors, do a cam kit: trunion upgrade, high volume oil pump, wind age tray. Add a bolt to the oil pick up tube, there’s only 1 holding it in, I haven’t done that yet to mine, but may. 2014 SS 1lE stage 2 cam and the above modifications, stainless headers, exhaust, SLP loudmouth 2 mufflers. Yes it will walk a new Camaro, you can beat the look on their faces, save the manuals!

[@sargepent9815]

The L86 6.2s are hard to come by. Lots of 5.3s, and 6.0s out there. We pay over 500 per core (as long as there's not a hole in the block). On this generation, the vain style oil pump is usually the culprit of failure. So much so that there's an aftermarket option to put the old style pump in, delet the AFM manifold and put in older style lifters. So the AFM features are what ends up killing these. The other issue is extending oil changes while running 0W20 oil in it.

[@rconley40]

Back in the day I own a 2004 Cadillac Seville with a Northstar engine (Aluminum Heads). The engine had an internal oil leak & the heads went bad at a 100k miles. All Northstar V8 had this problem.

[@shanew.williams]

As a retired, ASE certified GM line tech i always find your running commentary, as you're working, to be both amusing and informative. I agree this one, the "cause of death" is unclear. I'd like to see the results of an oil sample lab analysis. "Off the cuff", i suspect the oil became contaminated & the operator foolishly tried to "drive through it".

[@Todd-tq7cs]

Your ase certificate doesn't mean shit you just showed all of us that fact

[@BG-vq9fd]

I enjoy your commentary/humor and experience. I have bought GM since my first in 1973 most of them were over 200,000 miles when I wanted something new. I still have a 2016 5.3 Suburban. This had a new cylinder head at the first oil change and a warranty crate engine at 30000. Worst GM vehicle I have ever had.

[@karlkoenigstein4138]

Oh my word I died when the oil pan came crashing down! Thanks for the bonus video!

[@truckinman86]

I remember when people were calling the old 4.8s and 5.3s garbage engines when they were new back in the early 2000s. Ironically, these are the engines that seem to just keep going and not die.

[@larz46north18]

iron blocks IRONically yes sir

[@davelowets]

WHO called them "garbage"?? The LS has ALWAYS been recognized as an excellent engine. Yep, EVEN when they were brand new in 1997.

[@mack1541]

ERIC!! a teardown on a bank holiday monday......you spoil us here in the UK

[@scrocrates6380]

What are the odds? I'm working on this same POS in my driveway right now. Thanks, GM for the exploding lifters. They really keep the customers coming back for more.

[@Mr-ow3mk]

😂

[@stephenhensley7004]

"It's kind of an exploded view." Well played.

[@diedforurwins]

I just want to say I absolutely love your channel. Im not even a car guy I just love coming home after a hard day to watch you take stuff apart. Never stop !!!!!!!!!!

[@aabattery9434]

My 2015 silverado has an l86 engine. Within a month of having it, I bent a pushrod, spun a lifter, bent a valve, and wiped a cam because of the Afm crap.

[@upon1772]

Picked up a 2015 sierra with the l86 also. Hoping to do a DOD delete on it sometime before its too expensive...

[@Ghauster]

EPA causing our cars to be less reliable.

[@andrewdonohue1853]

@@Ghauster that's been happening for a long time now. EPA, CAFE, and CARB. it is why we cant have legendary 3800's, ford 300 I6, jeep 4.0 or a whole host of other greats.

[@N4CR]

Yup, it's why the LS3 is so highly regarded. Last of the LS's without all the crap to remove and it sounds amazing.

[@michiganman4398]

I work with two guys who got new engine replacements on brand new sierras. Both were within 2000 miles due to failures with the AFM. It’s mind blowing they know about the issues and continue to do nothing about it.

[@johnfranklin5277]

My 94 Trans am with the LT1 that i bought new, cant believe its 30 years old now, has 337.000 miles on it . Engine never been touched, even the timing chain is original. Still runs like new and doesn't use any oil. Amazing. 3000 mile changes using Castrol GTX 10 30.

[@ai-d2121]

Impressive. Thats about 110 oil changes, 6 quartz? 660 quartz x $10 = $ 6600. Price of an engine. I’d go with the oil changes. Well done.

[@mark37f]

@@ai-d2121 never looked at it that way...

[@gregorylyon1004]

I believe that the LT1 350 is the best GM engine ever made. 94-96

[@BigBadJohn]

In my humble opinion emissions and fuel economy standards have severely reduced the longevity of modern engines, they even reduced the protection that your engine oil provided back in 2006 the help catalytic converters.

[@Jakek200]

Bent pushrods are really common on these LT engines. Usually its one of the deactivation lifters messing up, often a lifter that bends the pushrod comes out in two pieces.

[@micahgregory7004]

Engineered by the finest business majors GM has to offer.

[@everythinghomerepair1747]

😂😂😂😂🤣🤣🤣🤣

[@karlschauff7989]

With the EPA standing over them telling them what to do. AFM wouldn't exist if the feds weren't requiring manufacturers to cut CO2 emissions from 1/2-ton trucks by ~4% each and every year.

[@mikes9759]

That's pretty wild!! I've had a few blown engines in almost 6 decades of building and driving. That thing with the piston gone is pretty wild!! It looks like the piston went through the cylinder wall. It had to be noisy! I twisted a rod about 100 degrees and it was really noisy but I was able to rebuild the engine. Good vid bud! Lot of good info!!

[@MrJimmy9800]

Hey now, I love AFM and the VLOM setup! It damn near paid for my car at this point!

[@Peepbus]

I love the "Malice in the Palace" reference. Keep up the solid work man. This channel is one of my favorites!

[@chrisoconnor3119]

This was entertaining. Hope my 6.2 holds up

[@lezzistarsmith]

LOL perfect timing! I'm just finishing a 6.2 engine swap cause the left rear piston got swallowed - same issue

[@dudebud72]

GM had a bearing failure on cylinder one on these motors. It was a factory flaw, went to look at a 2023, and they were still doing and was a shortage. I had a 2016 GMC Denali with the l83, and it was problematic, but did ok. I traded for a new 2023 Nissan Armada platinum and never looked back. The Nissan is dated, but the 5.6 just outruns the 6.2 without any fuel savings crap, so I pay over double than my l83, and a tad more than my l86. I did oil at no more than 3,000 miles.

[@PapawCulberson]

The main cause of that specific failure is not enough oil changes - change it at 3K at the most and use full synthetic engine oil. Do not use 0w-anything. Use 5w-30 ot 10w-30 Valvoline Full Synthetic engine oil in these engines - Wix XP oil filters. When the oil gets maple syrup color but till a little transparent - change it. Cheaper to do oil changes than replace an engine. Valvoline Full Synthetic Protect and Restore is an ideal oil for this application. AND - buy a handheld tuner and delete DOD/AFM on these engines.

[@davestark2015]

Happy Monday to me !!!! Wasn't expecting a new video today, thank you sir !!!!!

[@zack4892-g4m]

That oil pump spring was just great. Disappeared across the shop in the exact instant you freed it. Good thing for safety-tote. Also, there seems to have been a stretch of casting issues on the most recent year or so of the 6.2's, talked to a guy that the engine locked up not even 10 minutes after the dealership sold it brand new.

[@eric_emenhiser]

Thankful for all the people who neglect to check and change their oil regularly, our world would be a much more boring place if Eric didn't have those engines to tear down every week!

[@gregorylyon1004]

The oil was changed. We just don't know how often

[@paulferrara9079]

Wrist pin has left the chat lol Check your oil level folks. Love the camera work, so clear your video shows great detail of the parts and surfaces. Thank you as well for using the correct name of the parts as you go. I love learning what and how the new modern engines are put together. : )

[@theprobeius]

The way that piston was shattered was incredible.

[@highpointsights]

Two or three years back Steve Morris built a motor with some new rods. The rods (all of them) shattered into little pieces. It was a heat treat/ alloy issue as I recall!

[@MrComerford77]

I work for Hertz rental car as a mechanic. We are seeing more than a hand full of Denali's 6.2 engines locked up in the 20k range. Complaint is always the same cars stalls won't restart. GM has a problem with the 6.2 I can see a class action in GM's future.

[@tngtacticalmiata1219]

I saw the same thing happening with my Wife's Taurus SHO.... Couldn't wait to get rid of it. Thank God we sold it before it grenaded itself a second time. (First engine replaced under warranty) Direct injection is not all it's cracked up to be.

[@akripper6248]

Bonus tear down! "Exploded view". Good stuff!

[@hochhaul]

Short tripping + DI = fuel dilution. GM recommends 5W30 for the Corvette LT1 but 0W20 for the SUV's with an L86. Thin down 0W20 that already has thousands of miles on it with a bunch of gasoline and the bearings can get a little unhappy when you floor it to get your 6,000 lb SUV up to merging speed on the on-ramp.

[@braaapattack2937]

Makes me worried at times with my l87 6.2, I don’t do short trips with it, but she’s seen the High revs pulling my trailer down the interstate in the Tennessee mountains and the backroads such as the Cherohala skyway… pulling 6k through winding roads has it locked into 3rd gear pushing 6k coming down hills 🙃

[@johnmoore3504]

For the Vette they changed to 0W-40 for mixed street and track use. My understanding for these is the cylinder deactivation mode is the kiss on death.

[@hochhaul]

@@johnmoore3504 A collapsed lifter isn't really a kiss of death. You end up having to change some lifters and pushrods in most cases.

[@ari_smolbean]

I'd love to see you selling piston nuggets and other desk jewelry as merch. Would definitely even out the core for flopped teardowns.

[@donniev8181]

Nice close-up reveal on the rod rod cap bolts, it was like we were there watching with you.

[@Joserocha-wm9de]

Exploded 💥💥🔥🤯 Couldn't start any better ☺️ Happy Memorial day to Everyone , May God bless everyone 🙏

[@Gingle-Coin]

I can’t thank people enough when I’m still learning. Awesome content!

[@DaveWithMS]

If you look at the oiling rings on those pistons, you can see it with consuming a lot of oil. My guess is it consumed just enough oil to starve the other parts before the owner was able to catch it.

[@hotpuppy1]

Escalade>>ghetto cruiser.

[@DaveWithMS]

@@hotpuppy1 no no no no, if you get a Tahoe with the Escalade badges that's the ghetto cruiser... looks like an Escalade from the outside tore up dirty and disgusting Tahoe on the inside

[@craigquann]

Nope. High pressure fuel pump leaks when it fails. That's fuel dilution. The gas vapor builds up, and the pcv dumps it into the intake and massive misfires. That's why so much of the engine was washed clean.

[@DaveWithMS]

@@craigquann all those GM displacement on demand engines are known for consuming large amount of oil, the old control ring is usually the culprit. I'm not saying your theory is wrong, because that is a possibility, but looking at the damage I'm guessing it started out with a rod knock and it went ignored until the rod finally broke. I've got a 5.3 with a rod knock that has been sitting not moving for 6 years now because of the oil control Rings failing it that badly. But without having access to the rest of the vehicle, I guess we will never know. Again that's not to say your theory is wrong, I'm going with my anecdotal experience to saying why I believe my theory is correct.

[@craigquann]

@DaveFromColorado no they're not. That's the 2013 an older version. Completely different engine. I know, I've worked on, owned and driven many of both versions. My current 2017 burns maybe half a quart per oil change.

[@johnkeelan]

Great video, Eric, you have a great sense of humor--very entertaining. Thanks!

[@bobferranti5222]

I fully expect to see you sitting in your office one day and you having rows and rows of chains hanging from the walls lol.

[@kenmarsh]

It had a rapid unscheduled catastrophic disassembly of the piston and connecting rod! I love the use of all the different "specialty tools" being applied to the disassembly of the engine!

[@patriciap1214]

I really appreciate you putting all these videos up believe it or not. I had a 2024 Duramax diesel. I turned that truck in because it had complete computer problems and then I bought a Tahoe 2024 and I looked at the 62 engine problems and turned that in so now I have an electric hammer. We’ll see how that works out. You keep doing these engine videos because now I know what to stay away from. It’s a shame these car manufacturers are making beer, cans, metal engines, aluminum junk terrible.

[@DavidBachtel]

I just heard back from Scotty after one of your Prius engines tear downs. He said that you are wrong and Toyotas never go wrong.

[@brianlinton910]

Konky Kilmer might be one of the few experts to make TikTok hacks all seem like better advice.😂

[@michaelgleason4791]

Somebody has wayyyyy too much fun editing these videos.

[@muhcks1692]

this channel keeps me on youtube, no doubt my favorite creator to watch, a very educational yet entertaining creator like you is very hard to find, i find myself watching every video you’ve made and after i finish one i scroll around till i find another i haven’t seen. love the content keep it up, you save me from boredom on my days off

[@garyaudine3327]

Piston's "exploded view" lmao that's a realy good one Eric!🤣

[@Frost212]

A monday teardown? Woo hoo thanks Eric!

[@curtwebbe6301]

My 6.2 made it a whole 77k before it blew. GM’s finest strike again!!

[@petersomma4407]

Very entertaining as usual! Thanks for the bonus video!

[@jaredbawden6707]

You had a party basket with lots of Piston McNuggets and Oil Seasoned Block Wedges there, hold the brown sauce. Also loved the exploded view of the piston, really inspired the imagination with what a bang that would have been 🧨💥

[@XY_Dude]

Love the non-connecting rod syndrome! Makes the holiday great!

[@REDLINERUNNER]

It's called DISCONNECTING ROD broooo... Cheers from Croatia!!

[@thomasfletcher760]

Blue tooth rods

[@JasonMcCord-qk3yb]

I was waiting for the oil pump tear down. It mostly confirms my suspicions that this was driven a bit after it dropped the piston! Crazy! The “High-Speed” sound and video bit you did when you were tapping the oil pump pickup, is probably about what this engine sounded like when it was running!😂😂😂😂

[@REDLINERUNNER]

Thanks for DISCONNECTING ROD and PARTY BASKET!!! Lovely gifts under that blowage tray broooo... Greetings from Croatia!

[@RonnieClarke-vh4ip]

It total shame last ownership I feel sarry😢 about lost if engine of yorse..

[@REDLINERUNNER]

@@RonnieClarke-vh4ip Nope. I drive 1,4MPI.

[@davidwoolard7571]

That's gotta be the best " spring diffusing" I've seen!

[@SB-qi7mv]

This is a Memorial day surprise!

[@TT64NOVASS]

I switched to Coyotes two years ago and have blown up two of them , one at 6100 rpm and one let go on the on ramp at about 5700 rpm , maybe time to try a HEMI !

[@raystevens1458]

Eric, you haven't heard of the new cylinder strengthening process ? High Speed hot Peening !

[@thomasholland3289]

I dig your sarcasm. Well done young man.

[@terelll6990]

My mom had a expedition with the 4.6 and she had two inspection ports and repeatedly ran it dry but it started every time I miss that car every day she got rid of it and it was still running

[@SDPP992]

This happened to my 6.2 LS in my 2010 Escalade esv, valve seat dropped and bent pushrod and piston blew on cylinder 5, 6.2s are just horrible engines, I went with a reliable 5.3 and still does the job

[@SmittySmithsonite]

The pushrod has perished! 😂🤣😂 Love your commentary as always! I live in MA, so any time I can smile it's a good day. 😁21st-century GM products will certainly keep you busy ... and well fed! 😄

[@hochhaul]

Seems like Toyota decided to challenge GM with their new Tundra. That TT V6 is eatng crank bearings like crazy.

[@SmittySmithsonite]

@@hochhaul That sucks. Seems all brands have hit rock bottom lately. Glad everything I own is 30 years old, or older. 😁

[@jaredkennedy6576]

Freightliner started shipping chassis with that engine's 6.6L cousin last year, and I can't wait to see all the new and exciting failure modes. The most common one seems to be a failed fuel pump control module, which is stupidly complex, but I have my concerns about the intake valve carbon buildup. A Freightliner rep was saying they swirl in such a way that they won't have that issue, which I'm pretty sure is complete BS.

[@nickscapellato8248]

I recall Car and Driver having a Corvette long term loaner with a very early production LT1 that blew up. Apparently the early run of them had some machining issues or debris. Wonder if the later ones are more stout.

[@colinschmitz8297]

I thought of that too. At the time, I think they tried to blame it on a oil filter. Not sure that I believe them.

[@ohioheatsmith8567]

A correction, perhaps not that particular year but a few years later the VIN was in fact etched in the block. Located on the left rear portion in a approx 1"x3" location. How do I know? I etched a few thousand myself along with the 4.8 6.0 in their cutaway trucks and also GMs current 4500-6500 commercial series. This was done do to the fact of the high theft rate of these and a requirement of the DOT if I recall correctly. Facts matter P.S. this also includes the trans and frame in commercial vehicles

[@anaxis]

"I usually don't start at the back, it's a bad practice" - as a dad with daughters, I salute you. 🫡🤣

[@Uncle-Duncan-Shack]

Destruction, I mean displacement on demand. A very neat system, but wow is the cost of ownership high.

[@davidpowell3347]

"Destruction on demand" good new description for the V8 - 6 - 4 system that has never been any good and never will be any good regardless of whether it appears on a Hemi or a Caddy or a Honda or a Toyota or a Kia at the same time added a new trouble causing system for lowering the oil pump output while the "displacement on demand" wacko digitally connected gizmos increase the needed oil pump volume demand threatening the oil pressure to the crankshaft bearings not to mention the "'direct injection" which is idiotic unless also accompanied by a port injection system for normal driving use

[@rcflo7300]

Greetings from Germany, i cant get over how big your engines over there are, so many cylinders and big displacements haha.

[@markleggett3944]

Thank government regulations and poorly designed engines and parts and this is the result.

[@3gunshooter60]

DOD and the variable oil pump are the heart attacks waiting to happen in these engines.

[@josepeixoto3384]

Both mandated by them Law Makers, by the Governmemts,the Climate Hysterics; Saving the Planet, killing millions of engines, one at a time

[@karlschauff7989]

The high pressure fuel pump/injectors can also cause destruction.

[@garyandtricia1]

I was a GM tech. Reminds me of a DirtyMax we had come in. Had a knock and a slight miss, yes it drove in and I drove it in to diagnose it. Found no compression in #2. Teardown revealed no piston remaining, just the rod and wristpin bouncing around in the hole. Dirtymax is a pretty tough motor.

[@glennspreeman1634]

The 6.2 L direct injection fail regularly at 120-150 K. Rings get locked up and ball bearings carrying the rockers fall out 😢

[@hochhaul]

The rings only have problems when clown play games with how far they can stretch out their oil change intervals. When did GM switch from needle bearings to ball bearings in the rockers?

[@Chris_de_S]

But why?

[@swimbikeruntoday]

Great job with this video! I love my L86 with DOD turned off with a PCM edit. But I really miss my L59

[@freedomfighter5095]

GM issued a notice specifically regarding the Gen5 6.2 and they are having a huge shortage of cores themselves. But apparently some “techs” are putting head bolts back into cores and impacting them without cleaning the head bolts holes of coolant and debris….

[@firstlast---]

Correct. That has been addressed and all dealer technicians have been instructed to no longer do that

[@SmittySmithsonite]

Blows my mind how a corporation as HUGE as GM is can have shortages of ANYTHING. They can pick and choose suppliers at will. Something hasn't been adding up with all of this ever since covid hit. Makes me wonder if this is an under-handed way to FORCE people to buy new vehicles, and kill the used vehicle market. Seems there's been many attempts by our government to do the same thing (Cash for Clunkers). I think the whole "shortage" thing is manufactured. Just my humble opinion.

[@tatianatayts3051]

@@firstlast--- Of course instructions are always followed by dealer "techs", especially ones "promoted" to do engine work after a short stint at the car wash.

[@firstlast---]

@@tatianatayts3051 That's not how it works. Going forward any dealership that is sending in cores that have been hydro locked from not cleaning threads will be on the hook for thousands. Gm isn't paying for it. Compliance is required

[@vendoredu]

I'm fairly new to your channel and have been fascinated with the engine teardowns. Plus the subtle humor makes me laugh. Thanks for the great content 👊🏼🇺🇸

[@gwick358]

The perfectly good wrist pin has left the chat.