Question about 1991 GMC Sierra

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Truck wines when in gear only

How do i get rid of /fix this wineing sound,it only happens when i put it in gear?

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  • djbarrington Apr 15, 2009

    it sounds like its coming from the torque converter ,is there something i can do to get rid of the noise without replacing the hole thing?

  • djbarrington Apr 15, 2009

    wear exactly is this pump to,do i need to drop the trans?

  • djbarrington Apr 15, 2009

    righton man thanks for your time

  • Richard Scordino May 11, 2010

    first, get under there and find out where the noise is coming from...can't fix it if you don't know what it is!!!

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  • GMC Master
  • 6,982 Answers

If fluid is full and clean, likely the noise is the pump (in the front of the unit) Nothing I know of will fix it aside from replacement. I know it's not what you wanted to hear, but that's the reality of it.

Posted on Apr 15, 2009

  • Richard Scordino Apr 15, 2009

    Pump is located inside the bellhousing. The transmission input shaft runs through it. It also serves as the front cover of the transmission.
    Trans needs to be removed to get to it. Generally, when the pump begins to fail it is caused by debris from another failure or wear inside the unit.


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