Maybe not all 6.2's have the bad lifter bore/ bearing wear issues

[Antonm]

For our new $90K car, I decided to change the oil at 500 miles, then again at 3K miles and then again at 6k miles to get rid of any break-in metals before starting a regular oil change interval routine.

Because of all the issues the 6.2's in Tahoes, Yukons and Escalades seem to be having, I decided to send a sample of the oil that ran from 3K to 6k miles off to be analyzed. Figured if the engine was tearing itself apart, there would be evidence of it in a used oil analysis.

I'm hoping I got the one good 6.2 that managed to sneak its way out of the factory. I'll probably continue to do oil analysis every other, or maybe every third, oil change just to keep an eye on it, but so far it's not the kiss of death.

 

[GMCnewbee]

I don't know what the statistics are, but there are many 6.2 engines that will not see those problems (knock on wood) our 2022 has 18k, so far so good. If something does happen I will certainly be reporting it to the Forum.

 

[ninjaplumber]

Here is my report. Very similar except for oil grade used and more miles. I do have a slight ticking but it may be the injectors. Oil was changed the 4th time at 11,604 miles. I also installed a Catch can at 8010 miles.

 

[BacDoc]

Fake news! There is no such thing as a GM 6.2l that won’t blow up! It happens every time you are on a long road trip hundreds of miles from a dealer. You might have got the only 6.2l that didn’t blow up, but if you did call Guiness because this is one for the record books! Lol!

If I was so lucky I would buy a lottery ticket bro! I’m living on borrowed time as mine is almost 3 months old but I have a road trip coming up in July so I’m looking at rental car agencies along the route and putting numbers on speed dial when the inevitable happens.

 

[Antonm]

Fake news! There is no such thing as a GM 6.2l that won’t blow up! It happens every time you are on a long road trip hundreds of miles from a dealer. You might have got the only 6.2l that didn’t blow up, but if you did call Guiness because this is one for the record books! Lol!

If I was so lucky I would buy a lottery ticket bro! I’m living on borrowed time as mine is almost 3 months old but I have a road trip coming up in July so I’m looking at rental car agencies along the route and putting numbers on speed dial when the inevitable happens.

While funny, there is in all seriousness, a pretty big issue going on with the GM 6.2 at the moment. So much so that GM put out a TSB directing its dealers to hold all new, used, certified pre-owned, courtesy transportation vehicles and dealer shuttle vehicles and not allow customers to take possession of these vehicles until they are inspected/ repaired, and the repair is to replace the engine at no charge (see attached PDF copy of the TSB).

No company would willingly take such a financial hit unless they knew, for certain, that they were liable for making faulty product.
...

 

[ENTX]

While funny, there is in all seriousness, a pretty big issue going on with the GM 6.2 at the moment. So much so that GM put out a TSB directing its dealers to hold all new, used, certified pre-owned, courtesy transportation vehicles and dealer shuttle vehicles and not allow customers to take possession of these vehicles until they are inspected/ repaired, and the repair is to replace the engine at no charge (see attached PDF copy of the TSB).

No company would willingly take such a financial hit unless they knew, for certain, that they were liable for making faulty product.
...

How would I know if my engine is affected? (my 6.2 is in 2023 Suburban). Do I just take it to the dealer and ask to inspect per that TSB? Thanks!

 

[Marky Dissod]

How would I know if my engine is affected?
My 6.2L is in 2023 Suburban.
Do I just take it to the dealer and ask to inspect per that TSB? Thanks!

Read the TSB carefully first, your VIN is probably inside the window of suicidal 6.2L V8s.
Or, you could just go in there blind ...
I'd want to be able to smack anyone that tries to slow me down with a piece of paper that basically says I'm gonna get what I want or else.

 

[eversoslim]

This problem exists in the 5.3 too. I have a 2021 Tahoe 4x4 LT. At 35,000 miles, started to misfire. Dealer pulled a spark plug and replaced it with a new injector. I picked up my Tahoe after the repair and made it about a mile before the misfiring started. (If the dealer would have test driven the car.....etc.) Then, the dealer said that GM sent a bulletin to dealers to check for a small hole in the cylinders but that was a negative for me. The final repair was a new set of lifters on the left side of the engine. So far, so good.

 

[Marky Dissod]

This problem exists in the 5.3L too. I have a 2021 Tahoe 4x4 LT. At 35,000 miles, started to misfire.
Dealer pulled a spark plug and replaced it with a new injector.
I picked up my Tahoe after the repair and made it about a mile before the misfiring started.
If the dealer would have test driven the car ... etc.
Then, the dealer said that GM sent a bulletin to dealers to check for a small hole in the cylinders but that was a negative for me.
The final repair was a new set of lifters on the left side of the engine. So far, so good ...

Looks like you got a Gen5 V8 with Engine Half@$$, instead of Cylinder Confusion?
Hopefully your next final repair will not be a new set of lifters on the right side ...

 

[Antonm]

How would I know if my engine is affected? (my 6.2 is in 2023 Suburban). Do I just take it to the dealer and ask to inspect per that TSB? Thanks!

IDK. I have zero faith in dealerships “mechanics” to be able to do literally anything the computer scanner doesn’t tell them to do.

Maybe there are one or two actual humans with functional brains working in dealership service departments, but every single one I’ve met/ talked to in the last 15 years or so has been a mouth breathing moron that’s missing several brain cells but has some extra chromosomes kicking around.

So I just did a used oil analysis to see if I had a bunch of bearings material or other wear particles in the oil.

If you take yours in for an inspection, let us know what they inspected for ( my guess is a computer / code scan).
…

 

[mikeyss]

IDK. I have zero faith in dealerships “mechanics” to be able to do literally anything the computer scanner doesn’t tell them to do.

Maybe there are one or two actual humans with functional brains working in dealership service departments, but every single one I’ve met/ talked to in the last 15 years or so has been a mouth breathing moron that’s missing several brain cells but has some extra chromosomes kicking around.

…

This is a really f**ked up thing to say. The 'mechanics' you claim to be 'mouth breathing morons' HAVE to follow a set list of diagnostics GM lays out for them, even if it means a come back when the repair doesn't fix the issue. If they don't follow the list of diagnostics, GM will deny the claim and then the dealership eats that cost. GM is the one to blame, not the 'mechanic' or the dealership. I used to be one of those 'morons' you speak of, and when it comes to warranty work.... You do it their way or it's the highway.

 

[Marky Dissod]

This is a really f**ked up thing to say.
The 'mechanics' you claim to be 'mouth breathing morons' HAVE to follow a set list of diagnostics GM lays out for them, even if it means a come back when the repair doesn't fix the issue.
If they don't follow the list of diagnostics, GM will deny the claim and then the dealership eats that cost.

GM is the one to blame, not the 'mechanic' or the dealership.
I used to be one of those 'morons' you speak of, and when it comes to warranty work, you do it their way or it's the highway.

Wars are more often lost by generals, than by privates.
Most people don't realize that they've been trained specifically to misinterpret this,
but it IS nearly always easier to blame anyone that lacks the resources to fight back,
than it is to blame anyone or anything that is overflowing with excess capital, yet can never hoard enough of it.

How much more would GM have had to spend to avoid this lifter bore wear issue?
Likely, less than they're spending now to fix it.

An ounce of prevention is usually worth several pounds sterling of cure.

 

[Antonm]

This is a really f**ked up thing to say. The 'mechanics' you claim to be 'mouth breathing morons' HAVE to follow a set list of diagnostics GM lays out for them, even if it means a come back when the repair doesn't fix the issue. If they don't follow the list of diagnostics, GM will deny the claim and then the dealership eats that cost. GM is the one to blame, not the 'mechanic' or the dealership. I used to be one of those 'morons' you speak of, and when it comes to warranty work.... You do it their way or it's the highway.

It’s sad for sure, but absolutely true none the less.

The auto mechanic trade is gone, no one thinks, no one understands, no one troubleshoots,,,,they just plug into the port and mindless do whatever the box tells them. There are no mechanics anymore, only parts changers.

Blame whomever/ whatever you like, and it’s always easy looking back to see flaws, but reality is reality.

My sister was the service department manager of a Ford dealership for about a decade (yes, this is a GM Forum and this certainly opens us up to Ford jokes, but really all dealership service departments are pretty similar). I as a gear head DIY’er , I knew significantly more about my common rail ford diesel then the guy wearing a patch that read “certified master diesel tech “ on his sleeve.

I get it, they have to know several different models and new stuff comes out all time, but every one had given up even attempting to understand/ know/ comprehend what was going on and just went with plug in the box and do what the screen says mentality.

Oh, and rush through every job as fast as possible to beat book time so you can get paid for 12 hours of pay for 8 hours of work. The pay structure/ book time method and being able to get paid more for rushing through work and doing a crap job is another reason dealership mechanics suck.

Again blame whatever / whomever, but then ask yourself if I’m wrong.
…

 

[B-train]

It’s sad for sure, but absolutely true none the less.

The auto mechanic trade is gone, no one thinks, no one understands, no one troubleshoots,,,,they just plug into the port and mindless do whatever the box tells them. There are no mechanics anymore, only parts changers.

Blame whomever/ whatever you like, and it’s always easy looking back to see flaws, but reality is reality.

My sister was the service department manager of a Ford dealership for about a decade (yes, this is a GM Forum and this certainly opens us up to Ford jokes, but really all dealership service departments are pretty similar). I as a gear head DIY’er , I knew significantly more about my common rail ford diesel then the guy wearing a patch that read “certified master diesel tech “ on his sleeve.

I get it, they have to know several different models and new stuff comes out all time, but every one had given up even attempting to understand/ know/ comprehend what was going on and just went with plug in the box and do what the screen says mentality.

Oh, and rush through every job as fast as possible to beat book time so you can get paid for 12 hours of pay for 8 hours of work. The pay structure/ book time method and being able to get paid more for rushing through work and doing a crap job is another reason dealership mechanics suck.

Again blame whatever / whomever, but then ask yourself if I’m wrong.
…

While I didn't like your first post because I am an ex 'mouth breathing moron," I do understand what you are saying. I am a lucky guy to have had excellent mentors over my learning years and consider myself above average when it comes to mechanical/electrical understanding and comprehension. I've seen many idiots over the years that have the certifications you speak of, and have payed for their lack of experience as a customer.......it's effing frustrating.

I also understand that at the dealership you are subject to an archaic, structured, payment plan that doesn't foster the desire to learn to do better......only faster and quicker. You do what the book says so you can get paid. Going the extra mile usually results in you eating it. It's a ****** system unfortunately.

 

[Dave in Gig Harbor]

2018 Silverado 1500 6.2 owner here, with 80k miles. My truck was well cared for, oil changes about every 6k miles (now severe use), using the proper AC/Delco filter and proper weight oil. Did two Blackstone tests, and all was good. Just after 80k and an oil change, the engine bent a pushrod and that was a $5000 fix on just one bank. GM V8 engines used to be bulletproof. not so much any more. The crap engineering with the displacement on demand is piss poor. Love my truck but very concerned about it. I love it so much that I may have a custom 6.2 built for it and drive it until I croak.

 

[vcode]

Anyone have an idea of what VIN's are involved? I am guessing it is a narrow date window and not every 6.2L from 2023.....

 

[xycrazy]

Ok can someone please help me understand the consequences of a replaced engine? Would that impact resale value in a negative way? Can anyone who’s buyijg the car see that miles on car doesn’t match miles on engine? Just wondering about the financial impact. Thanks

 

[B-train]

Ok can someone please help me understand the consequences of a replaced engine? Would that impact resale value in a negative way? Can anyone who’s buyijg the car see that miles on car doesn’t match miles on engine? Just wondering about the financial impact.

There are ways to think:

1. OMG!!!!! It had a major warranty repair. Engine....EEK!. Cue the run away
2. Person who knows something about vehicles. Wow! A new engine that fixed issues?! Score! It'll last longer. Total win!

 

[vcode]

Ok can someone please help me understand the consequences of a replaced engine? Would that impact resale value in a negative way? Can anyone who’s buyijg the car see that miles on car doesn’t match miles on engine? Just wondering about the financial impact. Thanks

Carfax will show it. Probably a hit on a newer vehicle that will lessen with time......

 

[Marky Dissod]

Ok can someone please help me understand the consequences of a replaced engine?

Guess it depends on WHY it was replaced, and what kind of engine it was replaced with?

Would that impact resale value in a negative way?
Can anyone who’s buying the car see that miles on car doesn’t match miles on engine? Just wondering about the financial impact. Thanks

Why / How would it impact resale value in a negative way? Seriously.
My imagination fails me here; I'm hoping for creative yet likely examples.

OOH, wait.
Seen several 'vettes with 5.7L - 5.3L engine swaps, two 6.2L - 6.0L engine swaps.
THOSE would be NEGATIVE examples.

What I'd consider 'pretty good' would be a rebuilt / remanufactured engine.
I once replaced the 5.7L LT1 in my '94 Caprice wagon with a '95 with less miles.
That would not be as good as reman'd, but better than keeping the failing engine.

It'd be kinda rare & stupid for there to be a negative impact from replacing the engine, no?
How would it benefit resale value to keep an older engine with more miles in any vehicle?

And I still blame GM / FoMoCo / car manufacturers before I blame mechanics.
Car makers are the ones making things more difficult for mechanics, not the other way round.