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01 Suburban transmission

dwebbchevydwebbchevy Member Posts: 5
edited December 2015 in Chevrolet
I have an 01 suburban that wont shift to any gear automatically and when i shift manually it will only go to 2nd, 3rd and reverse. Fluid is good with no leaks. Any advice would be greatly appreciated

Answers

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    Mr_ShiftrightMr_Shiftright Member Posts: 64,481
    So when you start in Drive, it stays in 1st gear? So you have to move the gearshift lever to get it to go into 2, 3 etc. And you have no top gear at all?
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    dwebbchevydwebbchevy Member Posts: 5
    No it starts in 3rd and i can shift between 2nd and 3rd. 1st and overdrive are gone.
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    Mr_ShiftrightMr_Shiftright Member Posts: 64,481
    Here's what one diagnostic chart says about your condition:

    "ShiftA solenoid failed-- Or a wiring problem from PCM to trans or PCM itself. Needs diagnostic testing.

    Soooo, you might try to find a scanner that can read TCM codes and that may lead you to a solution.
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    dwebbchevydwebbchevy Member Posts: 5
    Thnks ill try that.
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    dwebbchevydwebbchevy Member Posts: 5
    got in the suburban today to show my dad how it was running and transmission is shifting fine. whats the deal?
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    dwebbchevydwebbchevy Member Posts: 5
    How can my transmission be missing gears and not shift automatically and working perfectly today? Any thoughts?
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