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Thread: 1993 gmc suburban 4x4

  1. #1

    Default 1993 gmc suburban 4x4

    Hello everyone, my name is Bobby, I have a 1993 gmc suburban 4x4 with what it seams like tranny issues. I drive it in drive, and it won't go ove 25 mph then it sounds like revs up and the rpm go sky high, doesn't shift seems like. I checked the fluids and it shows to be good.

  2. #2
    Join Date
    Jan 2007



    If you have checked the fluid level and condition and perhaps have had a transmission flush, and you still have a problem, then professional diagnosis is required based on your tranny's lack of upshift.

    Good luck with your project.

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