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1999 gmc sierra heater making noises in dash

Discussion in 'General Chevy & GM Tech Questions' started by tmaccc12, Nov 21, 2010.

  1. tmaccc12

    tmaccc12 New Member

    Hello, I have a 99 gmc sierra ext cab and just the other day it started making noises coming from inside the dash and the heat and air temp controller like stopped working. Even with the heating and air switch off truck running you can hear something moving
    back and forth it sounds like some door or something. Does anyone have any ideas of how to fix this problem.
  2. tmaccc12

    tmaccc12 New Member

    any ideas anyone?
  3. murdog94

    murdog94 Epic Member 5+ Years 5000 Posts

    Sounds like your blend door may be acting up, i would try and pull the HVAC fuse and let it reset and see how it goes from there.
  4. tmaccc12

    tmaccc12 New Member

    Thanks for your reply and I went out and tried that and it didnt help, anymore ideas?
  5. tmaccc12

    tmaccc12 New Member

    Is there anyone that can help me with this?


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