2022 6.2L Yukon Spun Crankshaft Bearing

[clojczyc]

Hi all,

About 3 weeks ago I had my Yukon with the 6.2L engine in cruise at 115km/hr (~70mph) when all of a sudden I realized I was dropping speed and noticed the vehicle was in neutral and the engine was off. No unusual engine noise occurred or check engine lights came on. I coasted to the side of the highway and came to a stop. When trying to restart the vehicle nothing would happen. I ended up having the vehicle towed to my local dealership where they tore into the engine and found that the crankshaft bearing had spun. Vehicle was purchased in December of 2022 and had roughly 5000km on it when the failure occurred. Anyways, the dealership is going to attempt to repair the failed parts.

 

[tom3]

Hopefully they'll replace the motor, or at least the shortblock. But the labor charge might make the engine switch more likely. I wouldn't accept it with the OE motor repaired.

 

[slupie]

If it spun a crank bearing there is possibility of metal debris in the engine. Like @tom3 said get them to replace the engine with a long block. Do not take it back with the original engine rebuilt by the dealer.

 

[Blackcar]

A spun bearing on main bearing in new truck definitely demand new engine, there is something going on with 6.2 engine the forum is seeing a lot of them reported here recently.

 

[WalleyeMikeIII]

Curious, did you run premium fuel or regular in your 6.2?

Definitely a total bummer...hopefully GM and the dealer make you whole! Should be a new engine.

 

[B-train]

Agreed. Don't accept anything less than a new motor. Or......have them rebuild it with an AFM delete.....that would be a slick deal

 

[DuraYuk]

Agreed. Don't accept anything less than a new motor. Or......have them rebuild it with an AFM delete.....that would be a slick deal

AFM has nothing to do with a spun bearing lol.

It's the most misunderstood thing around here haha. Beating a dead horse smh.

 

[clojczyc]

Curious, did you run premium fuel or regular in your 6.2?

Definitely a total bummer...hopefully GM and the dealer make you whole! Should be a new engine.

Only premium fuel was used in the vehicle so it wasn't a fuel issue.

 

[Blackcar]

Soo, if it's so misunderstood why isn't explained. This is reason for everyone participating here's concern.

 

[B-train]

AFM has nothing to do with a spun bearing lol.

It's the most misunderstood thing around here haha. Beating a dead horse smh.

Mr. Goodwrench, that wasn't my point at all. I'm very well versed on what causes a spun bearing. AFM is a constant thread around here, as is some sort of deleting or disabling it. So I figured I'd put a line in that guy's on here would agree with and find entertaining, however unrealistic it may be to have done under 'warranty.' It's a thing called a "joke" to make some light of a ****** situation.