Jul 15, 2009 · A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds, troubleshooting, …

Dec 28, 2011 · In light of some of the headgasket and overheating threads here on DF lately, I figured we could have a little discussion on what is going on with the LLY's in general that causes some of …

Jul 5, 2011 · what are some common duramax problems? im shopping around for some lb7 duramaxes and i found a nice lly and a nice lbz, what are common problems associated with the LLY and the …

Jul 26, 2019 · I have a 2005 chevy silverado 2500 duramax just stopped running it cranks over but won't start my number one injecter only has 1.93 volts on my meter

Aug 29, 2010 · 2005 LLY CCSB 4x4 LT3 EFI from ATP, S&B intake, MP, exh, shimmed and ported rail, self made egr delete pipe, Titan tank, HD tie rods, Cognito 4-6 with UCA's and 5100's, BMF's, HID's, …

Jul 8, 2012 · how can you diagnose a bad cp3? are there any certain signs to look for?

Feb 13, 2011 · A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds, troubleshooting, …

Feb 18, 2021 · When you get down to it, if you can't communicate with the ECM, it won't start or run. You need to solve that problem. Make sure both batteries are fully charged when dealing with …

Nov 18, 2016 · Thanks for all the troubleshooting info, jc. The TCM seems to be fine. It's the ECM that seems to be the issue. The truck will only start when grounding the ECM. I'll definitely go through the …

Oct 20, 2017 · A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds, troubleshooting, …