2020 Silverado w/ 3.0L diesel - new engine under warranty @ 75k miles!

James Eberhart · January 12, 2022

Hello everyone. I don't post much here, but I sure appreciate the information I have learned from the forum. I thought I would share my recent story on how I just had a NEW ENGINE installed under warranty at just under 75k miles.

I've had on and off engine light issues that my dealer could never figure out. In fact, they claimed it never threw a code. While in Cleveland visiting family for Thanksgiving, the truck threw the engine light plus the "reduced power" message on the dash. Took it to the local dealer. First they put in a new ECM as they claimed it had an internal short in the ECM on the oil pressure circuit. (code p06dd) After completing that repair, oil pressure still 6psi at idle. They pulled the oil pan and found the #2 cylinder oil squirter and bolt smashed and lying in the pan. They ended up replacing the entire engine under warranty due to damage to the block from the squirter and bolt coming out.

The repair took 6 weeks!

I live ~700 miles from Cleveland. Major hassle to get them to give me a rental car, and I only had it for 3-4 weeks of the 6 week repair. Then Roadside Assistance was supposed to return the truck to me. But after waiting and waiting on them, I actually flew to Cleveland and drove it home. Roadside Assistance is MISERABLE to deal with!!!!!!

No charge for the repairs, but spent $600 on a rental car home and a flight back up to get it. Anyone want to put odds on whether or not GM pays me back for those expenses?

Ioniq MPG · January 13, 2022

Wow! Congratulations on the new engine. Not a good sign for longevity. My truck just got a CEL yesterday at 14k miles. I'm ready to trade it in.

James Eberhart · January 17, 2022

Sorry about the double post. I don't know how to delete the other one...maybe Mods can help?

I was getting the CEL on and off for months. My dealer told me it never even through a code. I thought that was strange. I wonder if that squirter was bad from the start and maybe causing temporary dips in oil pressure causing the CEL? No idea.