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#help 2500hd allison allison 1000 bad injectors banks biodiesel brakes chevrolet silverado 2500 chevy cognito coolant coolant leak cp3 cp4 crank but no start def deleted denali diesel diesel fuel dpf dpf delete drivetrain dtc error codes dually duramax duramax 2500hd duramax 6.6 ecm edge efi efi live egr egr delete electrical electrical problems engine engine smokes exhaust for sale fuel fuel additives discussion fuel filter fuel mileage fuel system problems gmc head gasket help injector injectors intake knock knocking l5p lb7 lbz leak leaking led pods lift limp mode lly lly duramax lly durmax lml lml duramax lmm lmm duramax no start noise oil oil pressure p0087 p0700 powertrain ppe programmer reduced power rims smoke steering suspension tcm tires tow towing trans transfer case transmision transmission transmission problems tune tuner tuning turbo wheels white smoke will not start wiring
  1. 01-04.5 LB7 Duramax Powertrain
    Figured I'd try posting on here before taking the truck in for diagnostics I have 2002 gmc sierra 2500hd stock duramax. Ever since I got the truck it's been lacking power. I have more power while towing with my 1500 silverado than I do with this truck right now. No check engine lights...
    lack of power lb7 no codes powerless slow acceleration
  2. Towing & Hauling
    So, I hooked up the 35 ft 5th wheel that is 15k and pulled it up to my families property. This is my first long pull with the truck. I had my edge j/a on the tow setting. It did great on the freeway, awesome up the canyons where the speed limit was 55.. Pulled like a champ.. Then I got to...
    lack of power steep hill towing
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