Question about 2001 GMC Yukon

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MY TRANSMISSION DOSEN'T SHIFT, BUT IF I DO IT MANUALY IT DOES...... WHAT'T WRONG?

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  • gruporeyesde Jul 12, 2009

    NO, EVERYTHING IS NORMAL
    OIL BRAND NEW
    GOOD LEVEL


    ARE THERE ANY KIND OF ADJUSTMENT?

  • gruporeyesde Jul 16, 2009

    thank you

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  • 1,959 Answers

It's slipping. Check your tranmission fluid. If its low, fill it. If it's brown and gives off a burning smell, have it changed along with the filter. If neither of these apply, you have bigger issue with the transmission and should have it checked out by a specialist.

Posted on Jul 12, 2009

  • Greg Margossian
    Greg Margossian Jul 12, 2009

    Since we've ruled out fluid problem, most likely source is the shift solenoid. Apparently a common problem with GMC. To access the shift solenoid you need to drop the transmission pan.

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