GM 6.2L troubles aren't over.

[AZjeff]

A good friend's daughter and SIL back in Pa bought a 2026 GMC Yukon XL with the 6.2 earlier this year. Recently at 6000 miles it lit up the dash, they took it in and the engine is toast, they're waiting on a new one. There's a measurement or test service can do that tells them it's the bottom end. They found out they're 4th in line at this small town Chevy/GMC dealer in NW Pa for a replacement 6.2 , not good. Trying to get GMC to do a buy-back, if not then Lemon Law.

I'm a GM guy and I know this will light up the GM haters but it is what it is.

 

[vwmaniaman]

They should have gotten the 5.3.

 

[RhondaHonda]

43,000 miles on our 2024. I’m hoping I got a good one.

 

[mrvmax]

Wow, sorry to hear that. It is not just GM, all of them have one issue or another. Even the historically reliable Toyota is having major issues.

 

[4wd]

I have always bought the 5.3L - just traded one mint at 115k and still have the L84. This is my buddies 6.2L - gets run hard.

 

[4wd]

Wow, sorry to hear that. It is not just GM, all of them have one issue or another. Even the historically reliable Toyota is having major issues.

Yeah, H/K for a good while but seems to be mostly sorted.

 

[Hirev]

Years of more than a few failing GM 6.2 L yet people keep buying them. I've seen online where some of replacement engines are still failing.

 

[4wd]

43,000 miles on our 2024. I’m hoping I got a good one.

When our dealer dropped Cadillac - lots of folks here went Yukon Denali … see them often …

 

[JavierH19]

43,000 miles on our 2024. I’m hoping I got a good one.

My 21 with 54k hasn't blown up yet but I wouldn't be surprised if it were to blow I always expect it. One way to test for it is to have it at hot idle and have someone rev it to around 4k and let off the gas with you having an ear in the wheel well and if you can hear a faint rod knock when the engine slows its going to fail soon. If you can hear a faint rod knock without revving then it's about to fail. Personally I'd rather let the engine fail so GM doesn't reman it and put it in someone elses vehicle.

 

[andrew_j]

Lemon law not applicable . They have to fix issue so many times and not fixed. Hopefully not more than one engine replacement

 

[dfarr67]

Whether its an oversight or cutting corners- $$ for gm and lost customers. With a newish vehicle and wanting to go on a road trip- what do you do,,,,,

 

[loneryder]

The real sad part of this 6.2 story is that people are buying them unaware that they fail and have very little resale value. They get totally screwed one way or another.

 

[JohnnyG]

My next door neighbor bought a brand new GMC truck with the Duramax diesel. That engine blew in 5000 miles!
GM put a new one in.

 

[burbguy82]

The real sad part of this 6.2 story is that people are buying them unaware that they fail and have very little resale value. They get totally screwed one way or another.

Sure, the expectation of buying new car, is that it will be reliable.....but in this day and age, when there is so much info out there (good and bad).....there is no excuse for buying something that has known major problems, and lawsuits to boot.

 

[GMBoy]

A good friend's daughter and SIL back in Pa bought a 2026 GMC Yukon XL with the 6.2 earlier this year. Recently at 6000 miles it lit up the dash, they took it in and the engine is toast, they're waiting on a new one. There's a measurement or test service can do that tells them it's the bottom end. They found out they're 4th in line at this small town Chevy/GMC dealer in NW Pa for a replacement 6.2 , not good. Trying to get GMC to do a buy-back, if not then Lemon Law.

I'm a GM guy and I know this will light up the GM haters but it is what it is.

Good luck on buyback basically they are repairing the defect under warranty. Lemon law has to involve more than one repair for the same issue so not applicable here.

 

[GMBoy]

They should have gotten the 5.3.

Nope - lifters and cams are frequent failures. We have a 22 Tahoe 5.3 in, bad AFM lifters and ate the camshaft. Third time, it was done twice while under warranty at the dealer now its here because she is out of warranty. We are doing the full AFM delete and all new cam and lifters. Also Just did a 2020 Silverado 5.3 the week before and also did the delete. The 5.3 has had this going on since 2010.

 

[Danno]

Wow, sorry to hear that. It is not just GM, all of them have one issue or another. Even the historically reliable Toyota is having major issues.

Working at a Ram dealership, I don't see new crate engines waiting to be put into Ram 1500's at all.
Hemi or the Hurricane.
However, on a visit to the local Toyota store 2 weeks ago this is what I saw in the customer service drive in bays.

 

[4wd]

My 21 with 54k hasn't blown up yet but I wouldn't be surprised if it were to blow I always expect it. One way to test for it is to have it at hot idle and have someone rev it to around 4k and let off the gas with you having an ear in the wheel well and if you can hear a faint rod knock when the engine slows its going to fail soon. If you can hear a faint rod knock without revving then it's about to fail. Personally I'd rather let the engine fail so GM doesn't reman it and put it in someone elses vehicle.

Do you have a plug in disabler ? I think they are better for the TC as well - our 2017 drove much better with a Range …

 

[JavierH19]

Do you have a plug in disabler ? I think they are better for the TC as well - our 2017 drove much better with a Range …

Mine came disabled since some 21's had an issue getting some afm chip computer box thing for it so they produced mine without it so I got lucky.

 

[Chris142]

Trying to get GMC to do a buy-back, if not then Lemon Law.

I think you need more trouble from it to lemon law it or buy back. If the fix it and its OK the courts consider it fixed in an acceptable manor.