So my truck shuts off periodicly. The dealer is telling me they cant do anything for me and to bring back it back when it happens again so i dont have alot of ignition cycles. Do these codes look familiar to anyone. The first code is whats shutting the truck off. Thanks

First duramax I’ve had second diesel I’ve had however. I’m 19 and just bought this truck from an old farmer who’s had it since it was on the lot. The truck has no check engine lights whatsoever and runs and drives pretty well. However occasionally when I park I noticed a larger oil leak coming...

Had some requests for pictures and fuel Econ numbers for my big hauls. So here it is. I'll do my best to keep adding to this thread with all the heavy hauling I do.

So i just did a cp3 job, and when i crank the truck over it makes a loud grinding noise, turned over for half a second and it grinded so havent tried since. I put a new cp3 in and replace FPR. Just need to know why this would happen, gear on the cp3 is correct. Truck is a 2005 2500 duramax lly

Hi all. New to this website and new to Chevy. I bought a 2001 Chevy 3500 dually and I want to get better fuel mileage while still having plenty of power and not breaking the bank. What do y’all recommend