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Jan 4, 2025 · Home Forums Chev / GMC Duramax 2020+ LM2 & LZ0 Forums 2020+ LM2 & LZ0 Duramax Powertrain

Nov 16, 2023 · GM Authority is a bunch of independent journalists. They are not part of GM and do not speak for GM. They do sometimes misinterpret things. I'd still like to see a tsb of GM media release …

Oct 20, 2025 · A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds, troubleshooting, …

Feb 14, 2021 · Not sure if anyone else has experienced this issue, but I purchased a 2020 HighCountry Duramax in November 2020 and this Month ( February 2021) the heater core failed. I spoke with my …

Mar 18, 2024 · Hello folks, I successfully repaired my coolant control valve at home, no dealer fees, or WAITING for spare parts required…My 21 Sierra started throwing the P1098 code at 63k miles and …

Sep 6, 2023 · Where to find them? I have issues with no over herd interior light, no back up lights. (2007 chev 2500 HD with a diesel engine) Thanks It pains me to even say this, but AI apps like Grok and …

Feb 18, 2026 · 1988 - 1998 (GMT400) - 1988 - 1998 (GMT400) - The ultimate forum for latest news, discussions, how-to guides, and technical help on the 1987-1988 Chevrolet and GMC trucks.

Jun 5, 2023 · I'll be using my 2024 that's on order to tow 3 different trailers - 5th wheel, boat, and flatbed. Trying to find out how the integrated trailer TPMS system works with multiple trailers. The boat trailer …

Nov 16, 2020 · Picked up truck on Friday. Very smooth, however I noticed the temp when warmed up runs above the 210 mark and occasionally goes up to 222. Was wondering what other are seeing? I …