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#help 2500hd allison allison 1000 bad injectors banks biodiesel brakes chevrolet silverado 2500 chevy cognito coolant coolant leak cp3 cp4 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 overheating 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. Aftermarket Fuel Tanks
    I just put a 100 gallon transfer tank in my 06 GMC Sierra 2500 SLE2 LBZ. Should I have tow mode on when just driving around? Noticed the trans acting a little funny. Taking longer to shift and shifting a bit rough from park into drive. Sometimes shifts a little rough just in-between gears. Not...
    fuel tank tow haul
  2. EFI Live
    I was wondering what effect EFI tunign has on the tow/haul transmission mode and how it all interacts with say a turbo brake EFI tow tune? Also, does the EFI tow tunes with turbo brake change the shift points of the tow/haul transmission mode? I have used my truck to tow a 6k camper and put it...
    efi efi live tow haul tow/haul
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