Which build months are safe from lifter problems?

[Quark]

I think you'll need an attorney to get GM to do the right thing. Sorry to hear that you are having these troubles and hope someday you come out alright.

 

[Yukon21Denali]

My 21 Yukon Denali w/5k miles failed with a bent lifter 400 miles from home with my wife, two 100+ lbs dogs and daughter on board. That's why I got the Yukon, duh, road trips with the family. Was given an economy Buick Encore loaner and told, good luck on your trip home. Yukon is now said to be fixed after replacing all 16 lifters and they want the loaner back. Hmm, I'm 400 miles away now. Trying to get GM to buy the Yukon back so I can start my SUV search over again. What a disappointment in how all of this has been handled by GM.

Sorry to hear about your troubles with the Yukon. Would you mind sharing the build month?

 

[scottwoyak]

Sorry to hear about your troubles with the Yukon. Would you mind sharing the build month?

How do I find the build month. The car is at a dealer 400 miles away at the moment. I do have the VIN though.

 

[Micahsd]

How do I find the build month. The car is at a dealer 400 miles away at the moment. I do have the VIN though.

It’s normally on a sticker inside tbe driver’s side door but the dealer should also be able to look it up on the computer to tell you the exact date.

My decal shows 03/21 although the dealer looked it up and told me the exact date was 3/19/2021.

So far I haven’t had any issues but I’ve only got 5k miles on it. Also the TSB talks about lifter issues between Sept 2020 and March 31, 2021 build dates so I’m hoping that maybe I’m lucky and won’t have an issue.

 

[2011TahoeLT]

It’s normally on a sticker inside tbe driver’s side door but the dealer should also be able to look it up on the computer to tell you the exact date.

My decal shows 03/21 although the dealer looked it up and told me the exact date was 3/19/2021.

So far I haven’t had any issues but I’ve only got 5k miles on it. Also the TSB talks about lifter issues between Sept 2020 and March 31, 2021 build dates so I’m hoping that maybe I’m lucky and won’t have an issue.

Same here. 2021 Yukon Denali 6.2 Build date 3/31/2021 with 7,600 miles and fortunately no issues so far. Multiple trips including round trip between NY and FL.

 

[Micahsd]

Same here. 2021 Yukon Denali 6.2 Build date 3/31/2021 with 7,600 miles and fortunately no issues so far. Multiple trips including round trip between NY and FL.

Awesome. Makes me feel a little better.

Hopefully we’re both in the clear.

 

[Yukon21Denali]

How do I find the build month. The car is at a dealer 400 miles away at the moment. I do have the VIN though.

You can also do chat on gmc portal and they should be able to tell you build date from vin.

 

[Segalldontfly]

I have over 16k miles on mine; was one of the first owners (of 2021) on here. No lifter issues. Mine felt like it took 3-5k miles to fully break in. I've never been a fan of this powertrain (5.3 and 10 speed). It seems ruff at idle, with shudders at lower gear changes and low on power. Power is just adequate, but not fluid. I guess I'm trying to say the powertrain is not refined.

I just posted about the rough idling on my Yukon. Would be interested if you understand what I am describing.

 

[Marc Marc]

Update on my 2021 AT4 which I took delivery on May 23 with a build date of 3/31/21 per GM chat operator...now have 17,800 miles on it; trouble free and no lifter problems. Knock on wood!!

 

[Micahsd]

Update on my 2021 AT4 which I took delivery on May 23 with a build date of 3/31/21 per GM chat operator...now have 17,800 miles on it; trouble free and no lifter problems. Knock on wood!!

Awesome…that’s what I like to hear!

So far I’ve only seen one post of someone with a lifter issue towards the end of March. Mine was build Mar 19th so I hope to have the same luck as you with yours.

 

[B520044]

I just posted about the rough idling on my Yukon. Would be interested if you understand what I am describing.

Yes, my first Yukon had this not only after start up, but even during stops at lights/signs. My 2nd Yukon is not as noticeable, but it is there. I'm not worried though, because my 2015 F-150 (eco) and 2019 Ram (hybrid) also seemed ruff at idle. I blame it on all the new fuel saving tech. I absolutely hate cylinder deactivation and can feel it while active with a slight shudder though the pedals/steering/console. Again, my first Yukon was much much worse and I just wish there was a way to deactivate it.

 

[rog2867]

Are all of you using 93 octane in your vehicles as recommended in the manual? Just curious.

 

[20Tahoe21]

Are all of you using 93 octane in your vehicles as recommended in the manual? Just curious.

The 6.2 I believe may require higher octane. The 5.3 only requires 87.

 

[Farmer10]

My coworkers 21 sierra at4 just had the cylinder 6 and 8 misfire and had to get the passenger bank side lifters replaced. 21k miles

 

[rog2867]

87 for the 5.3 6.2 says 93

Premium unleaded gasoline meeting ASTM
specification D4814 with a posted octane
rating of 93 — (R+M)/2 — is highly
recommended for best performance and fuel
economy. Unleaded gasoline with an octane
rated as low as 87 can be used. Using
unleaded gasoline rated below 93 octane,
however, will lead to reduced acceleration
and fuel economy. If knocking occurs, use a
gasoline rated at 93 octane as soon as
possible, otherwise, the engine could be
damaged. If heavy knocking is heard when
using gasoline with a 93 octane rating, the
engine needs service.
Do not use any fuel labeled E85 or FlexFuel.
Do not use gasoline with ethanol levels

 

[rog2867]

Would be interesting for everyone to post the build dates and mileage of their vehicles and where you are located to see if there is a pattern. It looks like the very early builds had issues. Watch this video this guy says he got info from a tech friend of his that this issue is happening for build dates between Sept 1 2020 to March 21,2021 on sierras and silverado's but don't know if that is across the whole GM brand. I seem to see a lot more of the chevy's have this issue, at least on this forum.

Also here is the info the dealers get about the issue and what to do .

https://gmauthority.com/blog/2021/07/gm-experiencing-an-increasing-amount-of-v8-engine-valve-lifter-issues/

I have 2021 GMC Yukon Denali 6.2, Build date June 21, 2021 4K miles no issues so far located in NJ. My dealer says he has only seen a handful of vehicles with this issue at his dealership and almost all are with the 5.3 and with the older builds

 

[rog2867]

Just found this also.

 

[R32driver]

I just posted about the rough idling on my Yukon. Would be interested if you understand what I am describing.

rough idle has been a common issue for the 5.3 for a long time. Our 2011 suburban idle was terrible. Wasn't enough to actually see the tach needle move but you could feel the vehicle basically shaking. Dealer maintained for the 8 ish years we owned it, never any real problems reported, just routine maintenance. Fantastic vehicle but very annoying idle you just learn to live with. Our '21 yukon definitely has the same thing going on but nowhere near as noticeable. I am fully anticipating it getting worse as time goes on.

So far no lifter noise from the '21. Got 6K miles on her, build date 07/21

 

[Quark]

rough idle has been a common issue for the 5.3 for a long time. Our 2011 suburban idle was terrible. Wasn't enough to actually see the tach needle move but you could feel the vehicle basically shaking. Dealer maintained for the 8 ish years we owned it, never any real problems reported, just routine maintenance. Fantastic vehicle but very annoying idle you just learn to live with. Our '21 yukon definitely has the same thing going on but nowhere near as noticeable. I am fully anticipating it getting worse as time goes on.

So far no lifter noise from the '21. Got 6K miles on her, build date 07/21

I hate it when someone posts about not having a problem as it should be expected but here I go.

My 2012 5.3L runs and idles smooth as butter. Only run with 87 octane top tier fuel, no Kroger gas. I also put it in the manual mode bypassing FM until it warms up, don't know if that helps.

 

[TollKeeper]

My 2004 LM4 with 204k miles idles smooth as glass..