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Blower Motor Resistor Repair - Heater Fan Speed Control - Chevy Blazer GMC Jimmy S10

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Published on Mar 25, 2013

This video is a quick tutorial on how to replace a blow motor (heater fan) resistor set on a 2000 Chevy Blazer. These instructions should work for many other GMC vehicles such as Jimmy, S10 Pickup, Sonoma, Envoy, etc. My blower motor speed control was only working on 3 and 4. If your fan speed control does not seem to work you may want to replace this fan speed control component. While the switch could have been the issue I also had a squealing blower motor and often times you'll burn up a resistor when running a squealing heater fan motor.

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