Jump to content

2021 GMC Bad Lifter Problem Blown Engine

Mark Frederick
 Share

Recommended Posts

Mark Frederick New Member

Mark Frederick

Posted
Posted

I have a 2021 Sierra Denali 1500 6.2L. Lifer problem caused complete engine failure at 13000 miles. Dealer it was towed too had 7 more in service same problem. So if they only replace 4 lifters. Obviously this problem is widespread.

 

Those of you that have had this same nightmare.

 

Does the other side fail?

 

Is the replacement the same faulty lifters that caused the failure?

 

Any feedback appreciated.

  • 3 weeks later...
seamus2154 Enthusiast

seamus2154

Posted
Posted

Do a search. This is all over the forum threads.

 

No they are new lifters, and yes the others will fail, fight for all lifters replaced.

eppieguy Senior Enthusiast

eppieguy

Posted
Posted

If your engine is blown lifters aint gonna help ya! 

bjr2020 6.2 Enthusiast

bjr2020 6.2

Posted
Posted

When was your truck built? Mines 7-2020 no issues so far 11k on truck. This is making me nervous though 

JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted (edited)
52 minutes ago, bjr2020 6.2 said:

When was your truck built? Mines 7-2020 no issues so far 11k on truck. This is making me nervous though 

Lifer problem caused complete engine failure at 13000 miles. Dealer it was towed too had 7 more in service same problem. 

 

Wouldn't worry too much, if something does fail, you have your factory warranty to fix it.

 

You get a lot of "one and done" posts here, just to stir the pot. Doubt very much if any dealer is just telling him exact numbers of failures, if they even have had any at all. Easy to embellish any story behind your keyboard. like your engine being damaged beyond repair, but they are going to change one bank of lifters, OP said 4, so guessing just 2 cylinders🤔😬

 

 

 

Edited by JimCost2014
  • Thanks 1
bjr2020 6.2 Enthusiast

bjr2020 6.2

Posted
Posted

If that is the case lol some ppl must have a twisted sense of humor to pop on here and say stuff like that. Must love to stir the pot…….

  • Like 1
JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
8 minutes ago, bjr2020 6.2 said:

If that is the case lol some ppl must have a twisted sense of humor to pop on here and say stuff like that. Must love to stir the pot…….

Trolls usually don't discriminate against the pot they are stirring. Any pot will do.

 

COVID has created a lot of spare time for the "spare parts" of the world....

  • Like 1
PorkiePie New Member

PorkiePie

Posted
Posted

My turn for lifter failure at 7,246 miles on the wife's Escalade Sport not on my AT4.

 

Happened this week during slow acceleration at around 40mph, car started shuddering, engine warning light flashed, traction control light came on. On the dash got a number of warnings (Service Stabilitrak, Rear Axle System Off & Service Traction Control). Also the air suspension dropped to 'improve stability'. Additional noise from under car from transmission tunnel. 

 

More importantly, hence the post here, the recovery truck driver said this was the 5th GM lifter failure he had done recently when I mentioned it was probably lifter issue (no way of confirming his comment but it was an interesting response from him). So I suspect issue is pretty widespread when additionally you consider the replacement parts are on backorder (dealer has found some from another dealer and due for delivery next week). Overall will be out of service for 2 weeks.

The AT4 (built 12/20) has done just 6k miles & I hope I am not about to see the same on the truck.

Frustrated with GM but have to say dealership have been great.

  • 4 months later...
Silverado4x4 Senior Enthusiast

Silverado4x4

Posted
Posted (edited)
On 8/16/2021 at 10:33 PM, JimCost2014 said:

Lifer problem caused complete engine failure at 13000 miles. Dealer it was towed too had 7 more in service same problem. 

 

Wouldn't worry too much, if something does fail, you have your factory warranty to fix it.

 

You get a lot of "one and done" posts here, just to stir the pot. Doubt very much if any dealer is just telling him exact numbers of failures, if they even have had any at all. Easy to embellish any story behind your keyboard. like your engine being damaged beyond repair, but they are going to change one bank of lifters, OP said 4, so guessing just 2 cylinders🤔😬

 

 

 

Yup I was thinking the same thing sort of, why is it that all the people that post this problem are new members are they going to google doing a search then joining just to post this? I find it kinda strange trust me iam not saying its made up but I think some people just post this problem just to stir the pot and it didn't happen to them. Just like the big rush on oil cooler lines blowing off there for awhile that thread was dumped on by so many posts about the issue for weeks then all the sudden no more problems with the oil cooler lines again most were new members. Maybe iam wrong but it does seem strange.

 

I posted this when the rush of oil cooler lines blowing off. Iam good friends with the shop manager at our local dealership and ask him if he has seen any problems with the line blowing off and he said no but he has heard but none has came into the dealership shop for the issue.

Edited by Silverado4x4
  • Like 2
JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
On 8/16/2021 at 9:54 PM, Mark Frederick said:

Here is what is going on. Why this guy is still happy I have no idea. 
 

 

Because he made a video of himself🤔😬

 

Created his own "15 minutes of fame"!!!

seamus2154 Enthusiast

seamus2154

Posted
Posted
On 12/28/2021 at 5:37 PM, Silverado4x4 said:

Yup I was thinking the same thing sort of, why is it that all the people that post this problem are new members are they going to google doing a search then joining just to post this? I find it kinda strange trust me iam not saying its made up but I think some people just post this problem just to stir the pot and it didn't happen to them. Just like the big rush on oil cooler lines blowing off there for awhile that thread was dumped on by so many posts about the issue for weeks then all the sudden no more problems with the oil cooler lines again most were new members. Maybe iam wrong but it does seem strange.

 

I posted this when the rush of oil cooler lines blowing off. Iam good friends with the shop manager at our local dealership and ask him if he has seen any problems with the line blowing off and he said no but he has heard but none has came into the dealership shop for the issue.

Yeah, but alot of people only post or come to a forum when they have a problem. Then look to see if it is an isolated issue? Trust me this lifter issue on the 2021 is a huge issue. I went to rent a 2021 suburban from Enterprise months back. They had to bring it from another location to us. As we stood in front they pulled up and the lifter let go just a block away. 6000 miles on it. We were going cross country, this could have been a disaster. Well they called over to the airport where there were more 21 suburbans and 2 were down for the same reason!!! We had to wait till later in the day for another one. We did 9000 miles on it in 30 days it had 15000 on it when we got it. No issues but it was on my mind out in the middle of nowhere! GM penny pinched on the wrong part. If I spent 80K on a new Yukon and had this happen I would lose my cookies. We bought the 3.0 diesel and love it. When things get normal, we will get a Yukon XL with the 3.0, its a great motor with insane fuel mileage.

Kilgore Trout Enthusiast

Kilgore Trout

Posted
Posted
On 12/28/2021 at 3:37 PM, Silverado4x4 said:

Yup I was thinking the same thing sort of, why is it that all the people that post this problem are new members are they going to google doing a search then joining just to post this? I find it kinda strange trust me iam not saying its made up but I think some people just post this problem just to stir the pot and it didn't happen to them. Just like the big rush on oil cooler lines blowing off there for awhile that thread was dumped on by so many posts about the issue for weeks then all the sudden no more problems with the oil cooler lines again most were new members. Maybe iam wrong but it does seem strange.

 

I posted this when the rush of oil cooler lines blowing off. Iam good friends with the shop manager at our local dealership and ask him if he has seen any problems with the line blowing off and he said no but he has heard but none has came into the dealership shop for the issue.

Totally agree.  

  • 2 years later...
Jordan Bolster Enthusiast

Jordan Bolster

Posted
Posted
On 7/29/2021 at 9:52 PM, Mark Frederick said:

I have a 2021 Sierra Denali 1500 6.2L. Lifer problem caused complete engine failure at 13000 miles. Dealer it was towed too had 7 more in service same problem. So if they only replace 4 lifters. Obviously this problem is widespread.

 

Those of you that have had this same nightmare.

 

Does the other side fail?

 

Is the replacement the same faulty lifters that caused the failure?

 

Any feedback appreciated.

Yes it is general motors hidding there true problems not standing over it 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • ryan35205
      Lets Talk Z60 Suspension

      By ryan35205 · Posted

      Did the KYBs keep it the same height in the front? I was concerned that pre-assembled assembly would raise it up an inch to standard non-z60 height.. I guess which it would make the rake 1 inch instead of 2 inches.
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      Thank you for keeping the train on the tracks and for a thoughtful engagement. I enjoyed the reflection on a previous stance to refine and improve your position. I like that inquisitive flexibility about you Atlas.    No the process isn't sterile. Hundreds, perhaps thousands of miles of piping, vessels, pumps. Chevron, the people I worked for, were keenly aware that there is a market for what is known as their "ISOCLEAN" line of lubricants. These are lubricants that are the same as those sold bulk that are further processed by filtration to a level your particular application demands. They will filter and package and provide lab documentation as required. Do not kid yourself. Every gallon of oil that goes into a Chevron Turbine, reciprocating compressor, generator is prefiltered and tested before being charged. Lest wise it was when I was there in the plants I worked in.    There are requirements set by manufactures for the cleanliness of the oils used in their equipment. OTR such as CUMMINS has standards shared with customers on this. Commercial interest selling to Ma and Pa do, but don't share that information. Not even upon request but internally, they do exist.    The GM study sited, (Graph from Machinery Lubrication in previous post) only shows "relative" importance.  I find that fascinating. By constructing the graph like this they admit there are dozens of factors in engine life and via scientific method determined the effect of 'relative cleanliness' on engine life not in miles but in 'FACTORS'. This allows a certain amount of reverse engineering does it not?   They even provided some touchstones. Beta 75 as a reference point. Wonderful stuff!!   Smaller blenders CAN and some DO take the time and effort to do better than a refinery or large bulk blender, like Warren Oil, in improving the "in the can" cleanliness. No I don't have a list but testing could generate that information.    Again, but one of several levers we can pull to improve engine life. The simplest is keeping a clean work station while doing your own oil changes.     
    • Mykel544
      New Guy from Oklahoma

      By Mykel544 · Posted

      Thank you. I'll give it a try 
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      I just spent the last 45K miles doing samples every oil change over more than a full year to get the data for seasons and break-in to broke in.    I found the same thing to be true. Something was always teetering on done or had stepped off the cliff long before the OLM was DOA. In fact, I found about a thousand mile difference between summer and winter. That is during the winter half the OLM was STILL too long. Even the severe schedule was to long in the winter.   Now having done the work I can say I was NOT DISAPOINTED. I saw nothing I didn't already know. Nothing my father hadn't already demonstrated in his 2K OCI's pushing dated iron on dated oils and weak filters to mileages well beyond 300K.   Building on his work through use of Lab testing it wasn't hard to find the correlation between 'sight/feel/odor, the things dad relied on, and test results. Use of current viscosity stable chemistries & filters has pushed that marker for my motors out to 3K summer, 4K winter.    So the early lies were 3K on conventional oil and the lie upon the lie was 7K+. turns out to be off by a factor of two.    So... it is true that modern chemistry has doubled the useful oil life. But the base milage that came from was off by double. It's how good lies work. Partly true, sometimes mostly true so that your meter isn't set off. It also means that non-shear-stable shelf oils are only now as good as the old oils were in their best case scenario.    So the question now is how do we improve on that? Thus the question into cleanliness among the other items listed in the post quoted below.    If this bores you, feel free not to participate.       
    • newdude
      2027 Chevrolet Silverado: Official Discussion

      By newdude · Posted

      Is it though?  Like LTZ, not a high take rate.  Current Sierra has AT4, Denali and Elevation as its main bread winners.  Each trim accounting for 25-35% of sales for Sierra.  SLT makes up about 10-15% at best.        Like others have predicted here for GMC, it will be:   - Pro (equal to WT Chevy)   - Elevation (replaces SLE and SLT)   - AT4 (and X)   - Denali (and Ultimate).  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...