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  1. #1

    Default heat only runs on high

    Ok so other morning i got off work and got in my truck and the heat was already on high so after a few miles it was starting to get warm, so i turned it down and when i did nothing. the heat and the air will only run on wide open. does anyone have a clue what it could be. ive heard it was a fuse and ive also heard it could be the whole switch itself. thanks
    03 silverado ls model x-cab z71 w/ 5.3l.
    black lo pro toolbox
    ruff country leveling kit
    285/70/17 tera tracs
    stock 17's that are rhino lined
    5% tint

  2. #2

    Default

    Its the blower motor resister.

  3. #3
    Jr. Mechanic GMClone's Avatar
    Join Date
    Jan 2010
    Location
    Des Moines, IA
    Posts
    84

    Default

    Quote Originally Posted by BLK-Z71 View Post
    Its the blower motor resister.
    agreed

    http://www.gmtruckclub.com/forum/showthread.php?t=35605
    Truck: 2005 GMC Sierra SLT
    Toy: 2006 Honda 599

  4. #4

    Default

    thanks, you guys were right. but the new one on last night and it works like a charm. thanks again for the help
    03 silverado ls model x-cab z71 w/ 5.3l.
    black lo pro toolbox
    ruff country leveling kit
    285/70/17 tera tracs
    stock 17's that are rhino lined
    5% tint

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