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  1. #1

    Default No Cold or Hot Air through Vents

    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. #2
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    murdog94's Avatar
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    Default

    sounds like the blend door is stuck closed..
    Mike

    Currently

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