New bulletin/Campaign 6.2 L87

bruincounselor · October 12, 2025

On 10/8/2025 at 7:45 PM, MrLeadFoot said:

What do they give you for a warranty?

GM says 150,000 miles or 10 years from initial service date; whichever comes first. This means I have until 2/2032 - This would be on the bottom end of the new engine. Otherwise I just get the remainder of the regular factory drivetrain warranty (I have under 2 years left).

MrLeadFoot · October 13, 2025

20 hours ago, bruincounselor said:

GM says 150,000 miles or 10 years from initial service date; whichever comes first. This means I have until 2/2032 - This would be on the bottom end of the new engine. Otherwise I just get the remainder of the regular factory drivetrain warranty (I have under 2 years left).

OK, so not different than people like me who didn't get a new motor.

Just curious, how is everything else now that the new motor is i? Anything related get upended? Like, do you have rattles or creaking or anything like that since the repair? Hood, doors and bumper all lining up, and front bumper sensors and all working like they were before the engine swap?

bruincounselor · October 13, 2025

1 hour ago, MrLeadFoot said:

OK, so not different than people like me who didn't get a new motor.

Just curious, how is everything else now that the new motor is i? Anything related get upended? Like, do you have rattles or creaking or anything like that since the repair? Hood, doors and bumper all lining up, and front bumper sensors and all working like they were before the engine swap?

Everything is exactly as it should be. Any less and it would need to be addressed.

MrLeadFoot · October 13, 2025

3 hours ago, bruincounselor said:

Everything is exactly as it should be. Any less and it would need to be addressed.

That's great news. I am happy for you. One thing I would be afraid of is all the incidental issues that might go along with an engine swap, given all that they have to dismantle to swap motors in these trucks. I know with the Fords the cab is lifted off the chassis, but I think on GMs the front has to come off. So, congratulations!

JP642 · October 17, 2025

A few more data points

Took my 22 in for the L87 recall to one of the larger GMC groups here in Atlanta - Service advisor said they had several come in broken but they did not have any fail the Pico test
He also said that they are going to maintain oil change pricing (@$89 for 6 qts / @$129 for 8 qts) even though the switch to the new super car oil - not sure if same across GM or just this auto group

jordanmf09 · October 26, 2025

I have a '22 6.2 ZR2 and I have had a handful of issues with this truck. I had loss of propulsion issues about a year ago while I was on the highway and ended up thankfully coasting to the side of the road. Took about ten minutes to finally get the engine restarted. Happened one other time after getting it serviced at the dealership and they made some sort of fix and I haven't had that issue since.

My vehicle was part of this recall and I took it to the dealer a little over a week ago and I got the call last week that my truck needed the engine replacement.

The service representative said that they had an engine in stock that they'd be replacing it with so I should get it back sometime next week.

Has about 21k miles.

mjm-1957 · October 26, 2025

We have changed 4 engines that failed the recall so far. Another one is waiting to come in and countless other failures before this recall came out. It is tying up 3/4 of the shop with all this engine work. The other guys are busy doing valve bodies or pulling transmissions out to be overhauled. A Terrain engine that locked up is in the works and timing chains on an Acadia are being finished up now. General Motors will have no more customers to screw if they don't start building a better product and start taking care of the customers that are suffering threw another failure that GM passes off as Professional Grade. What a joke. The 3.0 liter diesels are also coming in alot with coolant usage with no external loss. We have changed two engines already and both had porous cylinder heads allowing coolant into the cylinders. That is a disaster to work on. Good job GM.

66ss3964spd · October 27, 2025

My '23 6.2 was just in a couple of weeks ago for the test and, as I suspected it would, it passed. Has about 25K miles on it.

Steve-2019 · October 27, 2025

Here's the latest in this never ending saga:

https://gmauthority.com/blog/2025/10/nhtsa-probing-gm-6-2l-v8-l87-engine-failures-not-involved-in-recall/?_bhlid=d6f4547e7335f0cc0d80baf0a3a40de4b250d585

NavyVette · October 28, 2025

I love how they put it "For vehicles not yet displaying failure symptoms, the fix includes changing to a higher-viscosity oil, installing a new oil filter, and adding an updated oil cap to reflect the newly recommended viscosity."

"Not YET"

NavyVette · November 5, 2025

I'm going to find out on the 12th if mine is "not yet displaying failure symptoms"

PunchT37 · November 6, 2025

For your viewing pleasure?

MrLeadFoot · November 6, 2025

3 hours ago, PunchT37 said:

For your viewing pleasure?

Not sure if I should thank you or not because, based on what they found in this video on both engines, this has me thinking ALL these engines are going to blow at some point, some just sooner than others. In other words, it looks like the journals and bearings are going to wear at an accelerated rate, and we will all experience the issue at some point, and GM is hoping that MOST of them will die AFTER the 150k mile obligation they settled on with the NHTSA. Your thoughts?

Edited November 6, 2025 by MrLeadFoot

PunchT37 · November 6, 2025

11 hours ago, MrLeadFoot said:

Not sure if I should thank you or not because, based on what they found in this video on both engines, this has me thinking ALL these engines are going to blow at some point, some just sooner than others. In other words, it looks like the journals and bearings are going to wear at an accelerated rate, and we will all experience the issue at some point, and GM is hoping that MOST of them will die AFTER the 150k mile obligation they settled on with the NHTSA. Your thoughts?

I believe you are correct. Those cranks suck. The chamfers are way too big. Roughness is bad but, how many cranks are worse than that on the many rebuilds that many bring to everyday machine shops? Stock rebuilds, hot rods, etc. Most to all seem to last anyway.

Add 0w20 oil, heat, oil breakdown, general truck duty, etc., and most will have a shorter than normal life.