2015 Sierra 1500 Denali with 6.2. Bent push rod!

videoarizona · June 30, 2022

Well looks like the AFM issue got me. At 124k miles, I thought I was beyond the AFM issue...guess not. I got the flashing check engine light, stumbling, etc., But after a few miles... The light stopped flashing and motor was running smooth. Put a load on it and same problem. Took to dealer. It was smooth sitting at idle. Writer was perplexed.

They tore down engine. Dealer hasn't said a thing about AFM but they said the rocker was frozen, push rod bent. Cam scored. What else would cause this damage except a locked up lifter? They need to tear down and rebuild. Looking at a week and $10,112.00 parts and labor. 2 year warrantee. No crate engine available.

I know that price is high. But now I'm bothered that this won't be the last time I see this issue. Most of my driving is freeway at 75mph. I do tow a 3 ton trailer but learned long ago you go up hills only as fast as you are willing to go down them... So that's 55 to 60... Letting the trannie do the work! In other words, my truck doesn't get abused.

Thoughts on this? Questions I should ask as we go along this process? Should I ask for cam, lifter, push rod... back?

By the way, GM won't help with price... I've been a loyal GM guy since 2004.... Even to taking my trucks to dealers for service. That did upset me as well! Should I speak to GM Regional about this?

Am I now going to be a part of that massive law suit?

Sorry for all the questions, I'm retired and not used to these type of issues. Life was much simpler years back...grins!

Ideas appreciated!

David

CamGTP · July 1, 2022

All I can say is wow to that price, that is insane to charge that much.

My parents payed $2,000 for just one side of the engine to be taken apart, would have only cost $300 more for the rest of the lifters on that side if they had to do the reset of them. So figure $5,000 for the entire job on both sides if you wanted to add it up. How it's another $5,000 for the camshaft replacement and new pushrods is beyond me, that is crazy high labor rates and parts mark up.

asilverblazer · July 1, 2022

Go to a dealer down the road, trade in truck and use that 10k as a down payment.

Dale Huhtala · September 25, 2023

I'm having similar issues. I have a 2017 GMC Sierra SLT with 99,000 KM on it. The lifters/push-rods have failed twice in the last year. $5,800 for the first repair and the second was covered under the one year warranty. They told me the parts they put in for the first repair had to be replaced again but when I looked at the details, the push-rods failed in different cylinders...so not the same parts. This is clearly the AFM issue but here in Canada, there is no class-action lawsuit happening that I know of.

I'm looking at doing this repair annually and GMC Canada won't do a thing for me - they called me and read like a robot from a script telling me there were no warranties available.

I am considering a 4 year extended warranty that will cost $4,400...what are my other options?

Buying another truck is NOT an option because ALL the GM trucks have this issue - still today. I don't see a way out of this. I may not be a GM guy any longer...