Mar 17, 2025 · Hello, new to this forum. Thinking about purchasing a 23 or 24 GMC Sierra with the 3.0 Duramax. I drive about 10 miles each way to work, mixed freeway and city. Reading …

I bought a 2025 GMC Sierra 1500 Denali Ultimate Duramax and overall, I love the truck. It's an absolute joy to drive, and the engine is fantastic. Unfortunately, with barely 3k miles on the …

Sep 2, 2016 · Today I successfully completed a manual regen while my truck was at my house, pretty impressive and scary at the same time. My engine cranked up to 2500 rpm and went to …

Feb 28, 2022 · Hello Everyone, I have a 2020 Sierra 2500 Duramax Denali, 27,000 miles. The DIC is showing the following two messages, (Service Emission's System, 175 mi Until 65 MPH …

Jul 13, 2021 · 2019 GMC 2500 6.6 / 55,000 Miles. Was on a road trip last night and got a DIC warning that I had 175 miles until I was limited to 65 mph. Stopped and put in 2.5 gallons of …

Jan 30, 2011 · A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds, …

Jan 30, 2021 · I want clean up the main grounds. I did the ones on each side of the motor. There was 2 sets on each side. Also did the batteries as they were replaced last week, and the …

Nov 26, 2012 · Chevy and GMC Duramax Diesel Forum A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about …

May 6, 2025 · A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds, …

Jul 26, 2019 · 07 GMC Sierra Classic (LBZ) Duramax Dually Crewcab 4X4, FASS Titanium 95, Ohio Diesel Parts Tank Sump, bypass engine oil filter, synthetic lubes; 84 Chevy 6.2L 1.25 …