2021 AT4 - Two Blown 6.2L in 25k Miles

[Hatche90]

2021 AT4 - Two Blown 6.2L in 25k Miles

2021 AT4 with 6.2 - $70k Vehicle 3700 miles blown engine - spun bearings/crankshaft. Warranty replacement. 25k miles blown engine - spun bearings/crankshaft. Warranty replacement. …and one pissed off consumer. Stay tuned.

www.at4forum.com

3700 miles blown engine - spun bearings/crankshaft. Warranty replacement.
25k miles blown engine - spun bearings/crankshaft. Warranty replacement.

…and one pissed off consumer. Stay tuned.

Seems like you take the saying “Ridden hard and put away wet” to the next level if you’ve already went through two motors.

 

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[PNW AT4]

2022 Yukon AT4 with 41,000 miles…. Engine just gave out yesterday. The local dealer said this was there forth Yukon
with the issue (6.2L). Love to say bye-bye to this truck, but I’m sure that’s not easy to do.

Update: Week of 4/08 and my dealer has received a crate engine... Should be ready to go next week. Everyone was very surprised the engine was delivered so quickly.

 

[adonahue00]

Hey Brother it looks like GM is trying hard to not fix them or issue a recall for the issue. I have 2019 GMC Denali 6.2 4X4 and around 539 miles my truck just stopped running while driving. ??? Indicator said to shift to “N” and press Start Button. Which I did and all of a sudden the entire dash went black. They said it was a fluke I shook it off got it back and while driving I made it to 889 miles and then the oil pressure dropped and the motor dang near tore apart. Same issue spun a camshaft bearing. Had the motor replaced at least got it back running and now I have hit 41,249 miles and it locked up again just like the first time.

The dealership tried hard to tell me that it wasn’t under warranty anymore so I told him I have a 3 yr 50K warranty on it I purchased it on 12/31/2019. I still have time. They even wrote it up as the motor was going to blow. Took oil samples and the oil has metal flakes in it.

I took a breaking bar and broke the motor lose it wasn’t that bad then I replace the 400amp fuse and drove it home from the dealer that said it was dead and needs a new motor.

This shop has to be the worst dealership I have ever experienced in my life.

So now I have a truck that pretty much has a bad motor even though it’s running today and I’m trying to patch it up and go trade it in.

I love the truck but GMs quality has dropped off the map!

I had a buy back going then Covid 19 hit and everyone who was involved with my case are no longer with GM…. They now have no record of me and my issues…

Beware of buying any GM right now the reason they are getting around a recall is because they made so many of them that the percentage of bad ones are under 1% or 2%.

GM has become so bad you have to sue them just to get things right.

I had the exact same thing happen to me, just bought the truck 10 days ago with just over 60k miles. I believe I am 50% covered under 90-Day/3,000 mile powertrain warranty from dealer. What would you do in this situation? Should I replace the engine or will it just happen again in a few thousand miles? Trade it in, etc. Im not covered under any warranty from GM only that limited powertrain warranty from the dealer.

 

[Hatche90]

I had the exact same thing happen to me, just bought the truck 10 days ago with just over 60k miles. I believe I am 50% covered under 90-Day/3,000 mile powertrain warranty from dealer. What would you do in this situation? Should I replace the engine or will it just happen again in a few thousand miles? Trade it in, etc. Im not covered under any warranty from GM only that limited powertrain warranty from the dealer.

I’m assuming that someone in SML 52DELTA’s position had this issue with their truck and went to go trade in their truck so it could then be the next guys issue. The dealership either didn’t catch it or decided to patch it up and let it be the next owners issue to fix. This is a super sucky situation to have with a vehicle you just purchased.

 

[adonahue00]

2021 AT4 - Two Blown 6.2L in 25k Miles

2021 AT4 with 6.2 - $70k Vehicle 3700 miles blown engine - spun bearings/crankshaft. Warranty replacement. 25k miles blown engine - spun bearings/crankshaft. Warranty replacement. …and one pissed off consumer. Stay tuned.

www.at4forum.com

3700 miles blown engine - spun bearings/crankshaft. Warranty replacement.
25k miles blown engine - spun bearings/crankshaft. Warranty replacement.

…and one pissed off consumer. Stay tuned.

about how much did it cost and how long did it take to replace the engine both times? what would you reccommend someone do in your situation?