NHTSA 6.2L Motor Failure Inquiry

[AXE]

Yeah kinda ironic that just after being accused of playing the victim, two more blow up…

Tick tock…

Yeah, it's not even bad on this forum. If you wanna know how bad it really is, get on Reddit cause it's one after the other Chevrolet, GMC, Cadillac, 5.3s, 6.2s. There's actually reason there's a motor shortage and it ain't cause there stacked up on the side of the road, it's cause there stacked at the dealer storage lot waiting.

 

[AXE]

Dave's Auto had this video posted a few weeks ago. Some interesting images of the carnage. He isn't seeing a beating problem, but possible a piston problem.

I see some GM techs in the comments saying it might be piston casting/wrist pin clips like the video shows, bad bearings, poor oiling, bad machining in blocks causing misaligned con rods, and left over casting materials like sand. No real consensus and all are plausible.

There are examples cited with 1-5 miles.......WTF.

 

[securityguy]

Dave's Auto had this video posted a few weeks ago. Some interesting images of the carnage. I see some GM techs in the comments saying it might be piston casting/wrist pin clips like the video shows, bad bearings, poor oiling, bad machining in blocks causing misaligned con rods, and left over casting materials like sand.

There are examples cited with 1-5 miles.......WTF.

Love this guy...wish his shop was closer to home!

 

[AXE]

Love this guy...wish his shop was closer to home!

Yeah, he's got some great videos and a hell of a shop and it highlights problems that can occur with every motor out there.

It takes some time to wade through the comments, but the techs have some good observations. There was one tech that said he's done 20 and another that said he does one every other week.

 

[securityguy]

Yeah, he's got some great videos and a hell of a shop and it highlights problems that can occur with every motor out there.

It takes some time to wade through the comments, but the techs have some good observations. There was one tech that said he's done 20 and another that said he does one every other week.

I've been watching his videos for a very long time. No BS and straight shooter. Not many high quality shops like him out there anymore

 

[Blazer88]

Dave's Auto had this video posted a few weeks ago. Some interesting images of the carnage. He isn't seeing a beating problem, but possible a piston problem.

I see some GM techs in the comments saying it might be piston casting/wrist pin clips like the video shows, bad bearings, poor oiling, bad machining in blocks causing misaligned con rods, and left over casting materials like sand. No real consensus and all are plausible.

There are examples cited with 1-5 miles.......WTF.

I talked a service manager at dealer when it got towed there I ask him what it can be with so many units failing. He said gm knows that the main bearings are thicker then they should and causing them to fail.

 

[bobo57]

Dave's Auto had this video posted a few weeks ago. Some interesting images of the carnage. He isn't seeing a beating problem, but possible a piston problem.

I see some GM techs in the comments saying it might be piston casting/wrist pin clips like the video shows, bad bearings, poor oiling, bad machining in blocks causing misaligned con rods, and left over casting materials like sand. No real consensus and all are plausible.

There are examples cited with 1-5 miles.......WTF.

Maybe all the above to some degree.

 

[securityguy]

I talked a service manager at dealer when it got towed there I ask him what it can be with so many units failing. He said gm knows that the main bearings are thicker then they should and causing them to fail.

Of course they know and fail to fix it properly. Let's just put new motors in trucks that will fail the same as the last...great business practice and instills a high level of confidence