shifting-problems

  1. duraburbin

    02 LB7 strange shifting. injectors?

    TLDR; Truck shifts bad and I'm not sure why. Ever since I bought the truck (02 2500hd which is now a 01 2500 burb) the light throttle shifts have been super inconsistent. Sometimes flares, sometimes is firm. Sometimes has a weird surge after shifts as if I blipped the throttle. Anything over...
    • duraburbin
    • Thread
    • fuel economy injector problems shifting-problems transmission
    • Replies: 0
    • Forum: LB7
  2. AlRob

    LMM - Shift Inhibited

    I'm at my wick's end with this and come here hoping someone could shed some light on the situation for me. 2010 GMC Sierra 2500HD - 4x4 - 155kmiles - MiniMaxx Tuner on Street Tune Basically, a month ago my tranny slipped a couple of times between gears out of nowhere within a two day span. Was...
  3. 1

    Tempermental Allison

    Bought 2002 HD 2500 Duramax, there are no codes listed for trans, what happens occasionally is when it shifts to 2nd or 3rd when driving normal, there is a very short rev-up of engine rpm when making the shift. You can hear and feel a definate blip in the throttle when it shifts. It works...
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