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#help 2500hd allison allison 1000 bad injectors banks biodiesel brakes chevrolet silverado 2500 chevy coolant coolant leak cp3 cp4 crank no start 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 injector advice injectors intake knock knocking l5p lb7 lbz leak leaking led pods lift lights limp mode lly lly duramax lly durmax lml lml duramax lmm lmm duramax no start noise oil oil pressure p0087 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. L5P TSB (service bulletins, recalls, updates)
    So I bought a used 2017 Chevy HC 6.6L Duramax a few months ago in Oct. Truck has ran great with no issues until about 3wk ago and I noticed a few times that my truck would almost "jump" into gear. I just drove my truck from Texas to Oregon and now the truck is having more issues. More...
    duramaxtuner.com limp mode shift problem shift solenoid tcm
  2. 04.5-05 LLY Duramax Powertrain
    Hello, I have a 2005 lly duramax. I recently did head gaskets and studs on it. In the process I put new injectors hard fuel lines , return lines, intake,up pipe, y bridge. Air dog 150 and cp3 pump now currently I am having a problem where when I accelerate hard in lower gears it pops and there...
    duramax head gaskets lly lly duramax shift problem
  3. 11-16 LML Duramax Powertrain
    The other night my truck got stuck in park. The shifter would not budge at all. Replaced the brake position sensor. As well as the transmission shift interlock solenoid. Now the truck shifts, but its shifting without pressing the brake pedal at all. Anyone have any insight to this?
    brake help shift problem shifter stuck in park
  4. Transmission Shop
    Hi All, I have a 2005 gmc crew cab LLY with the 5 speed. I have been noticing that when under moderate acceleration, it shifts funny between 3-4 gear. It begins the shift and during mid-shift it is like it goes into neutral. The revs pick up to about 3k at moderate acceleration, then it shifts...
    mid shift neutral shift problem
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