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Thread: Ac problem on gmt900

  1. #1
    Join Date
    Jan 2008
    Posts
    8,031

    Ac problem on gmt900

    Ok so I disconnected the battery on 09' Denali and now the ac just blows hot air wtf
    Any trick or reset to where it will work normal I don't need the heater in this weather lol

  2. #2
    Join Date
    Jun 2011
    Location
    Clarksville, TN
    Posts
    198
    Compressor circuit, u checked relay and fuses I assume....is the compressor kicking on?

  3. #3
    Join Date
    Jan 2008
    Posts
    8,031
    Yea compressor kicks on sometimes it blows cold air on passenger side only,it's happened before when I disconnect battery

  4. #4
    Join Date
    Jan 2011
    Location
    Mcalester,okla.
    Posts
    565
    Blend door motor.

  5. #5
    Join Date
    Jun 2011
    Location
    Clarksville, TN
    Posts
    198
    Quote Originally Posted by LQ9_Z71 View Post
    Blend door motor.
    My next guess. I've heard it's a common problem.

  6. #6
    Join Date
    Nov 2008
    Posts
    283
    +1 on door

  7. #7
    Join Date
    Nov 2009
    Location
    SAN ANTONE
    Posts
    781
    just bring it to the shop ill take care of it
    06 rcsb, 6two, 231/235, 4.11, pacesetter, 80e, 14 bolt, Nelson tuned
    2011 rcsb 6two swap in the works with 6l90 and boost
    FARMTRUC CAN GARGLE PEANUT BUTTER

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