Strange noise coming from A/C ! Please help

Discussion in 'GM Powertrain' started by CHEVY2G, Feb 1, 2011.

  1. CHEVY2G

    CHEVY2G New Member

    Hey everyone ! I'm having this strange noise coming from my A/C while in the off mode . It's very loud and annoying & start the minute it turn the key . The A/C works fine and while on the noise seems to go away but the minute I turn it off that annoying noise starts again . It will not go away until I shut the truck off or the A/C is turned on.
    The noise is a mixture of a squeaking & grinding noise along with some thumping and seems to be coming from behind the glove box .

    Please help me
    Thanks CHEVY2G
  2. stephan

    stephan Rockstar 4 Years 5000 Posts

    Welcome to the GM truck club C2G.. It doesn't really make much sense that the AC would only make noise when it's off. Is it possible that the noise is always there & you're just not hearing it when the AC is on, because the fan noise is covering it up?
  3. Bigbomber

    Bigbomber Rockstar 4 Years 5000 Posts

  4. Vincennes02261897

    Vincennes02261897 Rockstar 4 Years 1000 Posts

    Welcome aboard!
  5. mfleetwood

    mfleetwood Epic Member 5+ Years ROTM Winner 5000 Posts


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