Chevrolet Silverado 2500 HD Fault Codes

5 generations covered

Generation Years Vehicles Fuel
Silverado 2500 HD Mk I 2001-2007 2001-2007 6.0 CNG CNG (LQ4), 6.0, -LPG LPG,Gas (LQ4), 6.6 (Duramax) Diesel (LB7), 6.6 (Duramax) Diesel (LBZ), 6.6 (Duramx) Diesel (LLY), 8.1 Gas (L18 (LQR)), 8.1 Gas (L18 (LQY)), 8.1 Gas (L18 (LRW)), 8.1 Gas (L18 (LRZ)), 8.1 Gas (L18), 8.1 Gas (L18), 8.1 Gas (L18), 8.1 Gas (L18) CNG, Diesel, Gas, LPG
Silverado 2500 HD Mk II 2007-2014 2007-2014 6.0 Flex Fuel Ethanol (E85),Gas (L96), 6.0 Gas (LY6), 6.6 TD (Duramax) Diesel (LGH), 6.6 TD (Duramax) Diesel (LML), 6.6 TD (Duramax) Diesel (LMM) Diesel, Ethanol (E85), Gas
Silverado 2500 HD Mk II 2007-2015 2007-2015 6.0 Classic Gas (LQ4) Gas
Silverado 2500 HD Mk III 2015-2019 2015-2019 6.0 CNG CNG (LC8), 6.0 Flex Ethanol (E85),Gas (L96), 6.0 Gas (LC8), 6.6 (Duramax) Diesel (L5P), 6.6 (Duramax) Diesel (LML) CNG, Diesel, Ethanol (E85), Gas
Silverado 2500 HD MK IV 2020-2025 2020-2025 6.6 (Duramax) Diesel (L5P), 6.6 (Duramax) Gas (L8T) Diesel, Gas