Question about 2003 GMC Yukon Denali

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When driving I hear a rouring noise. Sounds like it is coming from the trans or front diff. Also the trans slips but only over 3000 rpms.

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Your vehicle needs a transmission service and band adjustment at minimum. I'm sorry to say that you may be looking a complete rebuild depending on how long its been driven like this

Posted on Sep 30, 2010

  • tjackson8509 Sep 30, 2010

    The noise has been going on for about a month but the slipping just started. Do you recommend the service or just replacing the trans?

  • Michael Kent
    Michael Kent Sep 30, 2010

    A reputable shop will give you the answer, most will credit the service toward a rebuild, you need to see what is in the pan when it is removed to tell the extent of the damage


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