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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 diode dynamics 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 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
    I am trying to troubleshoot a miss in my 2003 GMC Sierra 2500HD LB7 ZF6 NP261. It has an intermittent problem at lower and higher constant speeds where it will hesitate and you can hear the clutch unload/reload. The motor was completely rebuilt 20,000KM ago. The injectors are 50,000km old and...
    lb7 missfire np261 zf6
  2. 07.5-10 LMM Duramax Powertrain
    Lmm duramax, 258k miles had had one injector replaced, I just put a brand new turbo on it and a hsp egr delete and new y bridge, noticed after I got everything back together and running that the truck has a white haze and a small misfire on first start, it’s worse on cold mornings but it’s...
    first start missfire ticking noise
  3. 01-04.5 LB7 Duramax Powertrain
    hey everybody. i recently got this dmax lb7 and i was told that the injectors were replaced around 20000 miles ago. it is a retired formans truck from a local company here near me. anyways, i noticed a knock upon crusing speeds, so i took it the the dealership in hopes of getting new...
    knock missfire tick
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