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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. 2017-19 GM T-K2 Platform Powertrain
    Hello all, I’m looking to upgrade from my ‘06 LBZ to a ‘17 L5P (~100k miles). The one that I am currently looking at has a service note for injectors being replaced. I called the sales guy to ask about it, to which he responded that they replaced injectors on cylinder 4 & 8. I’m hesitant to...
    l5p l5p injector
  2. General Discussion
    I want to clean my injectors on my 2018 L5P Denali I pulled 4 fuses from inside the engine fuse box and can’t get the fuel pump to stop pumping fuel. I’m doing the gallon of Diesel with half Bottle of Top Engine Cleaner I disconnected the 2 fuel lines and hooked up 2-4’ lines into a gas can...
    fuel pump injector cleaning l5p injector top engine cleaner
  3. General Discussion
    I have a 2020 L5P duramax high country currently 35k miles still under the bumper to bumper warranty. I get a check engine light on the dash and then two messages reading vehicle power is reduced and a don’t stop driving like it’s going into regen the def gauge reads 3/4 full the truck has never...
    fuel system problems gm warranty l5p l5p injector
  4. 2017-19 GM T-K2 Platform Powertrain
    I was supposed to leave for a trip across country with our fifth wheel tomorrow morning I took our truck in to have it serviced as we are going to put on about 5000 miles round trip. The day before I took it in the check engine light came on for a couple hours then went off the dealer called me...
    2018 duramax gm warranty l5p injector
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