Question about 2004 GMC Envoy

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My fan for the Ac and heater will not work. iam trying to replace the blower resister

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The blower resistor is in the plenum... above the heater core.
If the blower motor does not work at all ... you may have a bad climate control switch.... or blown fuse even... as the resistor is a two stage coil... Low speed and medium speed... no resistor on High and would normally not go at the same time....

Posted on Sep 30, 2010

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