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No Cold or Hot Air through Vents

Discussion in 'Chevy C/K Truck Forum' started by mrlucio79, Feb 5, 2012.

  1. mrlucio79

    mrlucio79 New Member

    Hello All,

    It's been a long time since I have posted to this website. I need assistance figuring out why my cold and hot air does not blow through the driver and passenger vents. I do feel the air backing up and leaking through the top of the dash board. Could the directional knob be bad?

    1999 Silverado LS

    Thank You,

    Lucio
     
  2. murdog94

    murdog94 Epic Member 5+ Years 5000 Posts

    sounds like the blend door is stuck closed..
     

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