a/c duel air

  1. B

    a/c blend door drivers side air controll

    I have 2003 gmc 4x4 sle sierra pick up , i am having problems with duel air . Blowing hot air on drivers side when setting on duel air is cold. This the second time in two years.Had shop do it last time and it failed again well i would like to tackle it my self . I have a good idea its the blend...
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