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

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 …

Dec 21, 2024 · 2025 3500, Duramax 6.6 After stopping to refuel the check engine light came on again, took the truck to the dealership, where they updated the software and the light is off, …

May 7, 2025 · I have a 2023 GMC Sierra HD3500 6.6 Duramax. March of 2025 the valve body failed after 23,000 miles, which around 6,000 miles was hauling 3,000lbs, no more. The failure …

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 …

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 …

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 …

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 …

Nov 16, 2023 · Duramax turbodiesel 3.0L I6 LM2 engine: 2020 to 2022 Chevy Silverado 1500 2021 to 2024 Chevy Tahoe 2021 to 2024 Chevy Suburban Duramax turbodiesel 3.0L I6 LZ0 …

Mar 8, 2023 · 3.0 Duramax Tuning Now Out Jump to Latest 42K views 59 replies 24 participants last post by Madbuzz41 Jul 10, 2025 JayLLY Discussion starter