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New bulletin/Campaign 6.2 L87

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MrLeadFoot Enthusiast

MrLeadFoot

Posted
Posted
On 9/20/2025 at 11:33 AM, bruincounselor said:

Dealer called and the truck failed. He didn't know anything about something to drive for the 1+ months vehicle is not available to me. I called GM customer service and someone will be calling in 1-2 business days with an update.

 

Wish me luck. This isn't OK.

Any news? 

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Snow White
Snow White

the real issue here is Metaldyne Performance Group who supplies most of the powdered metal forged and machined rods ASSEMBLED by Tonawanda.  As recent as 2021, JD Norman Industries sued Metaldyne over

newdude
newdude

Update(s)   GM sent dealers a new special tool to use with an existing tool, the Picoscope (fancy high end oscilloscope plus a whole bunch of other fun stuff it can do).  Its a knock sensor

newdude
newdude

EDIT:  Linking an earlier version of the recall here that's from this very thread:   https://www.gm-trucks.com/forums/applications/core/interface/file/attachment.php?id=182274&key=25bd8ff5fd2a227a

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BIGDOGx Senior Enthusiast

BIGDOGx

Posted
Posted
19 hours ago, revrnd said:

She was all fire & brimstone after the Cobalt ignition switch fiasco... 

Her goal has been clear, maximum profits for the board. She does not care about GM as a company and it's perception among its customers, and this will come back to bite this company well after she has either retired, quit or been replaced. The damage she is doing right now will never be undone and will be permanent imo! 

  • Like 3
dieselfan1 Senior Enthusiast

dieselfan1

Posted
Posted

I just dropped mine off for the test.

Takes all day?

They said they only had one fail so far.

Large Chevy dealer N.W. of Minneapolis. 

I'm waiting for the call 📞 

dieselfan1 Senior Enthusiast

dieselfan1

Posted
Posted

Passed.

2023 HC 6.2 56,600 miles.

 

Then I turned around and talked about trading in for a 26 3500.

They only wanted to give me 42K. Sad. 79,000 sticker new. 

They can FO

revrnd Senior Enthusiast

revrnd

Posted
Posted
7 hours ago, BIGDOGx said:

Her goal has been clear, maximum profits for the board. She does not care about GM as a company and it's perception among its customers, and this will come back to bite this company well after she has either retired, quit or been replaced. The damage she is doing right now will never be undone and will be permanent imo! 

 

Not to mention her compensation....

BIGDOGx Senior Enthusiast

BIGDOGx

Posted
Posted
15 hours ago, dieselfan1 said:

Passed.

2023 HC 6.2 56,600 miles.

 

Then I turned around and talked about trading in for a 26 3500.

They only wanted to give me 42K. Sad. 79,000 sticker new. 

They can FO

These truck and suv sticker prices are due to them attaching EV losses to them, you all who have bought trucks the last few years are literally subsidizing those who buy EV's. That and the government for many models, and now that the government is out, hopefully for good, I wonder what they are going to do because as you see up above the term FO is becoming more and more prevalent! We are now at 6 figures for upper trim 1500 models which is insanity imo.

GullLakeMi Enthusiast

GullLakeMi

Posted
Posted

I have a '21 Sierra AT4 w/6.2L.  At approx. 55k miles and 5k past previous oil change, low oil light came on.  Took 2 quarts of oil for any to show on dipstick.  After next oil change, low oil light came on after 3,300 miles.  Had it in shop cuz squirrel ate some essential wires.  Complained about low oil issue.  They offered to 'open recall' and perform pico-scope test for L87 propulsion issue.  Test passed.  They changed oil and filter, used 0w40.  

 

Should I expect this to clear the open L87 engine loss of propulsion recall?  If it doesn't clear off my GM account, I'll check with dealer early next week.

 

They also completed a recall for ECM software update.  Wasn't aware of that recall. 

WeGone Enthusiast

WeGone

Posted
Posted
18 minutes ago, GullLakeMi said:

I have a '21 Sierra AT4 w/6.2L.  At approx. 55k miles and 5k past previous oil change, low oil light came on.  Took 2 quarts of oil for any to show on dipstick.  After next oil change, low oil light came on after 3,300 miles.  Had it in shop cuz squirrel ate some essential wires.  Complained about low oil issue.  They offered to 'open recall' and perform pico-scope test for L87 propulsion issue.  Test passed.  They changed oil and filter, used 0w40.  

 

Should I expect this to clear the open L87 engine loss of propulsion recall?  If it doesn't clear off my GM account, I'll check with dealer early next week.

 

They also completed a recall for ECM software update.  Wasn't aware of that recall. 

 

 

You should get the 10 year 150k mile warranty. 

  • Like 1
MrLeadFoot Enthusiast

MrLeadFoot

Posted
Posted
2 minutes ago, WeGone said:

 

 

You should get the 10 year 150k mile warranty. 

Even if he gets that warranty, I'm pretty sure GM will consider the oil consumption a completely separate issue so they don't have to warranty it under that rod bearings/crankshaft warranty.

MrLeadFoot Enthusiast

MrLeadFoot

Posted
Posted
1 hour ago, GullLakeMi said:

I have a '21 Sierra AT4 w/6.2L.  At approx. 55k miles and 5k past previous oil change, low oil light came on.  Took 2 quarts of oil for any to show on dipstick.  After next oil change, low oil light came on after 3,300 miles.  Had it in shop cuz squirrel ate some essential wires.  Complained about low oil issue.  They offered to 'open recall' and perform pico-scope test for L87 propulsion issue.  Test passed.  They changed oil and filter, used 0w40.  

 

Should I expect this to clear the open L87 engine loss of propulsion recall?  If it doesn't clear off my GM account, I'll check with dealer early next week.

 

They also completed a recall for ECM software update.  Wasn't aware of that recall. 

Yes, that will clear the loss of propulsion recall.

  • Like 1
GullLakeMi Enthusiast

GullLakeMi

Posted
Posted
16 hours ago, MrLeadFoot said:

Even if he gets that warranty, I'm pretty sure GM will consider the oil consumption a completely separate issue so they don't have to warranty it under that rod bearings/crankshaft warranty.

Not worried about oil burn long-term other than being annoying.  Seems a common problem.  Was helpful in getting pico-scope test performed.  Hoping now it frees the recall so easier to sell.  I'm ready to move on to something else.

WeGone Enthusiast

WeGone

Posted
Posted
6 minutes ago, GullLakeMi said:

Not worried about oil burn long-term other than being annoying.  Seems a common problem.  Was helpful in getting pico-scope test performed.  Hoping now it frees the recall so easier to sell.  I'm ready to move on to something else.

 

They way I see it if it passes how long before it does fail... I sold my 21, did not want to worry when and were I would be when it did fail as I used it for long distance trips pulling a car trailer to shows. Worst part was the loss in value!

  • Like 1
MrLeadFoot Enthusiast

MrLeadFoot

Posted
Posted
1 hour ago, WeGone said:

 

They way I see it if it passes how long before it does fail... I sold my 21, did not want to worry when and were I would be when it did fail as I used it for long distance trips pulling a car trailer to shows. Worst part was the loss in value!

What are you going to do now? 

WeGone Enthusiast

WeGone

Posted
Posted
18 minutes ago, MrLeadFoot said:

What are you going to do now? 

 May wait a few years and look into a 2500 until than....Drive my 2000 GMC Sierra, it has never let me down,

MrLeadFoot Enthusiast

MrLeadFoot

Posted
Posted
1 hour ago, WeGone said:

 May wait a few years and look into a 2500 until than....Drive my 2000 GMC Sierra, it has never let me down,

Now I wish I hadn't given away my 2000 Suburban after buying my truck. 

  • Like 1

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