Question about 1998 Chevrolet K1500

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Why does blower fan speed switch lock-out off and low speed positions on 1998 chevy silverado? It stopped working altogether then I replaced a 10 amp fuse and now only medium high and high will work but, switch will not turn back to medium low and off positions.

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  • Anonymous Mar 26, 2014

    on off runs high on low runs high on medium runs high on high runs high

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Sounds like you may have a bad blower motor resistor.  When they go bad, they usually wipe out all speeds except high.  But could knock out just one or two of the speeds.  It should be located near the blower motor.

Posted on Sep 10, 2009

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You will need to replace the blower switch and the blower switch connector, both are avil from your local GM dealer parts dept.

Posted on Sep 10, 2009

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