BREAKING: GM is officially recalling the L87

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ZKWBQD

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General Motors has decided that a defect which relates to motor vehicle safety may exist in certain 2021 – 2024 model year Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, and GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with the 6.2L V8 gas engine (RPO L87). The connecting rod and/or crankshaft engine components in these vehicles may have manufacturing defects that can lead to engine damage and engine failure.

Safety Risk Description

If the engine fails during vehicle operation, the vehicle will lose propulsion, increasing the risk of a crash.


View attachment 455776

Also, just got this notice for my Yukon from Carfax Car Care.

One interesting thing I noticed is that GM is now recommending 0W-40 instead of 20. We were right.
Do you mean 20W-40 or 0W-20, or something else?
 

PPK_

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When I called a local dealer about the recall, the service guy made a comment about there being dirt/contamination in the production process of the metal of these engine parts [that is causing the failures]. Now, I don't know if that's his interpretation of the terms used in the bulletin(s), or whether he got that info on good authority. Well prior to the recall coming out, though, when he had 3 trucks at the dealership waiting for new engines, he said that the failures were due to [a run of] poorly manufactured parts. To me, that checks out/is the culprit here.
My guess is tooling to build motors... not what it what it was in my 2018 SLT... That is my 2024 Nov Built yukon 5.3 first change at 600 miles. it was full of material.. other than oil. i did three changes to get it decent..

My estimate is something has happened to tooling.. or something effecting cleaning of blocks, pistons, lifters.. heads.. the filter should get everything over 30 microns.. but.. that still leaves a lot to get through. its pitiful.
 

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corpnupe85

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I went to the dealer on 4.29.2025 because I was alerted that my 2021 Tahoe High Country was a part of the recall. They told me there is not a fix for the issue yet. They just told me to wait until more information is received. I may go to another dealer.
 

NELLY1947

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So why not change the oil to that in 2025? Or diesels ? Or any other vehicle that uses 0w-20?

I'm not buying the oil fix. I think it could be a bandaid one vehicles with problems but the underlying problem will still remain.
I just called my dealer and he went . HOLLY CR#&*. I knew this was coming. Just too many problems. As far as he is concerned their oil trick is a no .no.
What happens on 3-5years from now and you have sold the unit and gobto a oil change shop and they Put in 20 and you stress out the motor????
 

KMeloney

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I went to the dealer on 4.29.2025 because I was alerted that my 2021 Tahoe High Country was a part of the recall. They told me there is not a fix for the issue yet. They just told me to wait until more information is received. I may go to another dealer.
You're going to get the same response from other dealers until they've gotten more info (and new oil caps).
 

KMeloney

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What happens on 3-5years from now and you have sold the unit and gobto a oil change shop and they Put in 20 and you stress out the motor????
What exactly are you asking here? (If you're saying that someone unsuspecting of all of this won't know to put 0w-40 in it 3-5 years from now, well, that's what the new oil cap [with 0w-40 printed on it] is for.)
 

Jocko PDX

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I called my dealer this AM and they confirmed that my engine was on the bad list.. I said what now? The service guy responded that he did not know and that they did not have clear direction from GM. He said that they had been originally been directed to change the oil wait but now that plan was being scrapped.. Oh boy
 

Marky Dissod

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What is being very strongly implied - and should be inferred - is that GM has been chronically seeking out ever lower bidders,
and ever lower assembly costs.
Anyone who noticed Boeing's manufacturing quality decline over the past decade would not be surprised at GM's manufacturing quality decline trend.

All of you wondering when your L87's are gonna metal-schidt their crankcases,
GET YOUR MOTOR OIL ANALYZED ASAP.

Us motor oil suitable for an L8T, or an LT1 / LT2 / LT4 / LT5.
 

blanchard7684

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I called my dealer this AM and they confirmed that my engine was on the bad list.. I said what now? The service guy responded that he did not know and that they did not have clear direction from GM. He said that they had been originally been directed to change the oil wait but now that plan was being scrapped.. Oh boy
Hell their only recourse is either

1) put correctly manufactured parts in all 6.2 in affected range ( good bye stock price). This one is best option for customer. I mean this is what we paid $80 K or more for right?

The wait would be terrible. This is where the 0w40 is a potent stop gap.

2) thoroughly revise engine and transmission mapping to neuter the 6.2 low end torque ( this will just piss off the customer )

The more I think about this 0w40 aspect the more I don’t like it.
 

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