A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more!

Sep 2, 2024 · 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 about several …

Jun 22, 2022 · DEF Tank Heater The DEF tank heater may be faulty on some 2020-2021 Silverado 1500, Silverado 2500HD/3500HD, Sierra 1500, Sierra 2500HD/3500HD; and 2021 Tahoe, Suburban, …

Sep 20, 2021 · Simple question(s) for those who have done this already....is it necessary to have a dealer reset the ecu after replacing both front and rear nox sensors? I am getting the p11dc for …

Dec 11, 2021 · I’ve been looking to get a new truck and was looking at the GMC AT4 1500 with the 3.0 Duramax and was wondering if there are any problems with this motor and what else would I need to …

May 25, 2023 · Does anyone have any real world data on the 2024 6.6 Gas V/S 6.6 Diesel fuel economy. Going next week to order my truck, and I'm seriously torn on which to...

Jan 13, 2024 · I'm in the market to immediately buy a 2018-2021 SRW DieseI truck. I recently retired and for the past 5 years I've been planning on buying a 3500 SRW diesel Chevy Duramax or Dodge …

Nov 25, 2024 · I have a 2022 3500 dually Duramax now and haven't had any problems so far and was wondering if there is any advantage to buying a new truck? Thanks in advance for any pointers! Roy

Nov 30, 2016 · Does anyone have a decent coolant diagram for our 6.6 LB7 diesels? I've developed a tiny drip coming from the passenger side of the engine on my 2003. The drip is coming down the …

Apr 4, 2018 · 2018 Duramax Transmission Jump to Latest 52K views 31 replies 20 participants last post by 2hoefs6064 Oct 6, 2023 Tim Coltrain Discussion starter