BREAKING: GM is officially recalling the L87

[cornicekurt]

Three?!? I second guessed myself .. but was talking to my BIL - if my Yukon is on the engine replace list, it’ll be my fourth 6.2L in a 2023 Yukon (over 2 vehicles, both 2023) . Insane. Feel like I should be up for some type of award. Anyone out there going on a 5th motor?!?

GOOD GRIEF!!

 

[cornicekurt]

I don't have a dog in this fight but I do have a question for the guys who do. Are you feeling lucky?

A thicker oil although it should protect better will NOT fix a manufacturing (part) defect. So my opinion is switching to 0w40 just prolongs it until the catastrophe happens. Whether that's an extra 5 miles or 50k.

I wish you all with 6.2s the best of luck! I know I'd be pissed with an expensive paperweight with low miles on it.

Unbelievable. Finally grow up enough to buy a new luxury car and they tell me to bring it in for heavier oil because some have come apart!! Sounds like the days of shady mechanics tossing sawdust in the oil to silence the knock! I’m sick to my stomach

 

[cornicekurt]

That would be a giant $3B sting at least

I would love to get my hands on the internal "8D report" on this issue

Triple that number. For simple math purposes let’s say it a million cars. Minimum 10k per (probably a lot more)
That’s TEN BILLION!

 

[viven44]

Triple that number. For simple math purposes let’s say it a million cars. Minimum 10k per (probably a lot more)
That’s TEN BILLION!

That makes the $5B Tariff hit GM complained about look like a good deal.. incidentally, looks like that "defective" Crankshaft was made "not here" based on the supplier report shared earlier.. ouch.. must be hurting now

I'd be interested to find who makes the Corvette crankshaft (part#12705121) which is a different part number but essentially the same thing. The differences are likely attributed to the different transmissions used (Corvette 8-speed has no flexplate, etc, etc,)..

Update: plot thickens

No actually I was partly wrong... likely not related to the transmissions

In fact when I pulled up the defective part # 12710954 (per RockAuto) on GM parts outlet it comes up with an updated part number and also shows some Corvettes use the same part if this is true (to be confirmed.. maybe call a dealer and get the part #s) why aren't they involved in the recall

 

[vcode]

For those of you advising on changing oil at 50% of OLM, is this mileage based or time based? I had an oil change at 1 year because my OLM said I was at 0% yet my mileage was only 2,697. Asked another way, is time a concern with oil quality or is it mileage that dilutes it over time?

Miles. No way I am changing oil at 6 months if I've only put 1350 miles on it. Unless you are uber paranoid. Can't dilute the oil if the engine isn't running.

 

[cornicekurt]

That makes the $5B Tariff hit GM complained about look like a good deal.. incidentally, looks like that "defective" Crankshaft was made "not here" based on the supplier report shared earlier.. ouch.. must be hurting now

I'd be interested to find who makes the Corvette crankshaft (part#12705121) which is a different part number but essentially the same thing. The differences are likely attributed to the different transmissions used (Corvette 8-speed has no flexplate, etc, etc,)..

Update: plot thickens

No actually I was partly wrong... likely not related to the transmissions

In fact when I pulled up the defective part # 12710954 (per RockAuto) on GM parts outlet it comes up with an updated part number and also shows some Corvettes use the same part if this is true (to be confirmed.. maybe call a dealer and get the part #s) why aren't they involved in the recall

View attachment 456530

This one is going to get uglier. I’ve got the 23 High Country Tahoe. Service manager at the dealership told me this afternoon that mine is in the “no resolution” file. (He ran my VIN). Said I’m getting a new engine.

 

[cornicekurt]

That makes the $5B Tariff hit GM complained about look like a good deal.. incidentally, looks like that "defective" Crankshaft was made "not here" based on the supplier report shared earlier.. ouch.. must be hurting now

I'd be interested to find who makes the Corvette crankshaft (part#12705121) which is a different part number but essentially the same thing. The differences are likely attributed to the different transmissions used (Corvette 8-speed has no flexplate, etc, etc,)..

Update: plot thickens

No actually I was partly wrong... likely not related to the transmissions

In fact when I pulled up the defective part # 12710954 (per RockAuto) on GM parts outlet it comes up with an updated part number and also shows some Corvettes use the same part if this is true (to be confirmed.. maybe call a dealer and get the part #s) why aren't they involved in the recall

View attachment 456530

What if I’m wrong and it’s 20k to swap em all out which is what I’m thinking will ultimately happen

 

[Kaminski]

So it appears some VINS (early 21s from some reddits) are already showing engine replacement recalls - N252494002.

Most other later years are showing oil swap - N252494000. This includes my 2022 Tahoe High country.

From what I gather, they are starting with the earliest production engines in the year ranges and will move in batches down the line from 21-24. The oil swap recall is a bandaid to try to help effected engines try to last until their turn comes up.

Sound right?

 

[WalleyeMikeIII]

So it appears some VINS (early 21s from some reddits) are already showing engine replacement recalls - N252494002.

Most other later years are showing oil swap - N252494000. This includes my 2022 Tahoe High country.

From what I gather, they are starting with the earliest production engines in the year ranges and will move in batches down the line from 21-24. The oil swap recall is a bandaid to try to help effected engines try to last until their turn comes up.

Sound right?

I don't think we know, because the recall bulletin for N252494000 is not yet released...there was a prelim copy, but the actual bulletin/TSB is not available publicly. I would love to see it though.

 

[jfoj]

For those of you advising on changing oil at 50% of OLM, is this mileage based or time based? I had an oil change at 1 year because my OLM said I was at 0% yet my mileage was only 2,697. Asked another way, is time a concern with oil quality or is it mileage that dilutes it over time?

I do not know the exact way the GM OLM works but it looks at a number of parameters such as fuel usage, mileage, engine temp, time and maybe some other data inputs. So it probably flaga at the 1 year mark, I know it flaga on an engine overheating.

But th 50% OLM is for people that drive their vehicles, probably around 3000-4000 miles, not the 7500 miles that they often trigger on.