I have 2021 Sierra 1500, 3.0L Duramax. Lately, Engine light was on with message popped up Egine Reduced Power and fan went full blast. I took to dealer, they told me need to replace …

Mar 16, 2011 · Cylinder Numbering LB7 It helps to remember a few things. 1) The cylinders/pistons are numbered from "1" at the front of the engine to "8" at the back in the …

Sep 2, 2016 · Current Truck: 2024 GMC Sierra Denali 2500 HD with retrax-pro tonneau cover. Former Trucks:2019 GMC Sierra Denali Duramax 2500, loaded. 2016 GMC Sierra Denali …

Nov 7, 2023 · Logan Jewell: 2022.5 GMC AT4 3.0 LM2 80000kms and climbing 2003 1500hd 6.0L EFI tuning, Magnaflow exhaust.

Jan 21, 2022 · I have a 2015.5 Gmc lml 6.6 Duramax and was at GM Dealership replacing folding mirrors. Mechanic told me that I had a NOX sensor code for Bank 2. Which one is Bank 2 ? Up …

Jun 30, 2017 · 2011 GMC Sierra 2500HD 4WD CCSB LML -275/65R20 Firestone Destination MT2, 20x9 Moto 970s, Kryptonite Stage2 level kit, ccm diff drop, Suspension Maxx 1" Rear …

Oct 16, 2022 · The Service Emissions System warrning and countdown has disappeared I've driven close to 200 miles since then and no SCR related codes have returned. NOX sensors …

Oct 30, 2024 · A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds, …

Jun 22, 2022 · 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, Yukon …

Sep 22, 2019 · Certain 2017 - 2019 model year Chevrolet Silverado 2500/3500 and GMC Sierra 2500/3500 vehicles, equipped with the 6.6l Duramax diesel engine (RPO L5P) and optional …