New bulletin/Campaign 6.2 L87

[PunchT37]

35 minutes ago, Jus Cruisin said:

25 pages.... This recall sure got the site revved up and busy.

It might beat my thread at 29 pages.

[MrLeadFoot]

6 hours ago, customboss said:

casting issues = debris in the block that deposits in bearing journals etc. earlier BOOM

boring= un even pressures on bearings and rotating stock.  slighly later BOOM 

 

My take. 

 

6 hours ago, customboss said:

casting issues = debris in the block that deposits in bearing journals etc. earlier BOOM

boring= un even pressures on bearings and rotating stock.  slighly later BOOM 

 

My take. 

No argument from me here, although bad spec could also cause casting issues. Either way, as you said, fall down go boom, and case can't be re-used (or, at least, shouldn't be re-used).

 

On the other hand, according to the video above it's a not a case-related issue, it's a crank issue. But, even though the case can be used for a rebuild, it still requires a complete teardown and reassembly, which dealerships are simply not equipped to do reliably en masse. Now, the fact that GM is doing new replacements, as @newdude shared, I suspect they are not exactly positive, at least not sure, enough to gamble and put us in reman'd motors using the same case. 

 

My take. 

[MrLeadFoot]

4 hours ago, Jus Cruisin said:

25 pages.... This recall sure got the site revved up and busy.

You mean, the "world".... 

 

And, looks like you now don't have a care in the world. 

[MrLeadFoot]

3 hours ago, PunchT37 said:

It might beat my thread at 29 pages.

And, rightly so. This topic should stay at the top of all news until GM resolves the issue for existing owners, which I suspect may never come to fruition for a lot of us. 

[Z45]

I spoke with a service manager acquaintance at my local dealer and he said, GM has never replaced an engine under warranty with a re-manufactured engine. Its always been a new engine. Its typically short block if the heads and intakes system are usuable.  Its different with transmissions in that the only thing they reuse is the case, all internal parts are new. So says he, 25 yrs in GMC/Chevy/Cadillac Service.

[newdude]

10 hours ago, Z45 said:

I spoke with a service manager acquaintance at my local dealer and he said, GM has never replaced an engine under warranty with a re-manufactured engine. Its always been a new engine. Its typically short block if the heads and intakes system are usuable.  Its different with transmissions in that the only thing they reuse is the case, all internal parts are new. So says he, 25 yrs in GMC/Chevy/Cadillac Service.

 

 

Engines can be reman or new.  Depends on the year of the vehicle mostly.  Service guy was blowing some smoke there.  

 

GM does not sell short blocks anymore for production vehicles.  Long block only.  

 

2016-2019 model year window for example.  You have a 6.2 and it quits after 90k miles.  GM offers two L86 6.2s at the moment.  One p/n is remanufactured, the other is a brand new engine.  The 5.3 for that year range?  Only option is reman.  

 

The 6.2 L87 for 2019-2021 model year, that p/n is a reman.  

 

Many of the engines for 2020+up vehicles so like 1.2 turbo, 1.3 turbo, 2.7 turbo, 3.0 Duramax, etc., those are new.  

 

4.3 V6 for 2019-2021 is available as a reman or new.  

 

If it is new or reman'd, the GM EPC is quite clear in labeling such.  

 

The recall 6.2?  Those that get replacement engines they will be a 100% new engine, not a reman.  

Edited May 21, 2025 by newdude

[bwoodsmn]

16 hours ago, Z45 said:

I spoke with a service manager acquaintance at my local dealer and he said, GM has never replaced an engine under warranty with a re-manufactured engine. Its always been a new engine. Its typically short block if the heads and intakes system are usuable.  Its different with transmissions in that the only thing they reuse is the case, all internal parts are new. So says he, 25 yrs in GMC/Chevy/Cadillac Service.

In my specific case my 2021 6.2 (Built in February, not part of the recall VIN Sequence in the recall) engine was replaced with a reman. when the engine failed at 26000 miles. So, I can report that they do not always replace with a new engine.

[Mike Duhaime]

Yeah that ultra thin oil doesn't cut it at low RPM and load....exactly what i'm doing pulling  a heavy trailer with my 5.3. Si, i'm puttin in the molasses too!

[PunchT37]

Hmmm, looks like thin oil strikes again?

 

 

The dude slams GM. But, don`t most all recalls start out life as TSB`s?

Edited May 21, 2025 by PunchT37

[tbarn]

18 minutes ago, PunchT37 said:

But, don`t most all recalls start out life as TSB`s?

Nope

[customboss]

1 hour ago, PunchT37 said:

Hmmm, looks like thin oil strikes again?

 

 

The dude slams GM. But, don`t most all recalls start out life as TSB`s?

No. Pictures show damage on cams that look like 3rd party abrasive damage or metallurgy issues. 

[PunchT37]

Wonder if Ford has different suppliers than GM? Or, does all metal suck today?

[newdude]

One of our guys did 3 in stock used 6.2 vehicles for the recall using the Picoscope.  So far we are 3 for 3 that passed and are getting 0w40.  2022 Tahoe, 2023 Yukon and a 2024 Silverado 1500.  

[MrLeadFoot]

39 minutes ago, newdude said:

One of our guys did 3 in stock used 6.2 vehicles for the recall using the Picoscope.  So far we are 3 for 3 that passed and are getting 0w40.  2022 Tahoe, 2023 Yukon and a 2024 Silverado 1500.  

I understand that these are on the lot for sale, but did an extended warranty get assigned to their VINs? I suspect not, even if GM does end up providing warranties to existing owners (which I am still doubtful about), because GM might want to help enable dealers to sell warranties when/if these types of vehicles get sold.

 

Additionally, I'd like to know if the pico test ever does report a test failure, or if this is all smoke and mirrors, so I appreciate you providing these reports.

Edited May 21, 2025 by MrLeadFoot

[Andrew Martens]

So my truck engine not in the recall, bwoodsmn's engine not in the recall, both blew up, and I know one guy with a 5.3 that the bottom end went out at 100,000 miles, GM has a big problem on their hands with their engines going out way above this current recall which is only for the 6.2s.  Maybe the percentage of vehicles giving trouble is low, but....