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2006 Chevrolet Colorado Question: Blower Motor works sometime

 

Question

keaton, Batavia, NY, July 22, 2012, 15:39
 Rookie

My heater/AC fan will work all the time in high speed. All other speeds will not work sometimes. Have you an idea what’s wrong with this?

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  • Answer #1

    ziptie12 July 22, 2012, 19:38
     Master

    system electrical diagram and circuit description of operation......then you can guess all you want or diagnose it with the correct info & troubleshooting guide.

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  • Answer #2

    pushrod July 22, 2012, 22:46
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     Master

    BLOWER RESISTOR! High speed is not controlled by the resistor,but the lower speeds are.
    Located near the blower motor behind glove box.

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    keaton, July 23, 2012, 15:24
     Rookie

    This is very helpful. Is the resistor in the cab or on the firewall?

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    pushrod, July 23, 2012, 15:38
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     Master

    LOOK BEHIND GLOVE COMPARTMENT!! Maybe you should seek a mechanic's help.
    GOOD LUCK.

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  • Medium-star Best Answer
    Greg's Orange Auto (13378 Answers) , Orange, CA - (714) 361-9386
    globalhelper July 23, 2012, 06:16
     Master

    ck blower motor resistor it defaults to high if its bad most of the time

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