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.