Question about 2004 GMC Envoy

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My heater only has high and off on my 2004 gmc envoy xuv

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  • GMC Master
  • 1,121 Answers

Annette, it's your blower motor resistor. Need to specify whether it has automatic climate controls or manual when buying. Located behind the glove box. Need to remove the plastic kick plate where your legs would be. At this point, you can look directly up from the floor, you'll see the resistor with 2 small screws. You will also need to drop the glovebox door down, the latch just releases. There you'll see the whole blower motor. The resistor connector to the motor will be in plain site at this point. Unconnect from motor, remove rubber band and completely remove resistor from bottom. Check the connecting terminal connectors, it is very common for both male and female connectors to melt. Best to buy the pigtail and the resitor together. Very common problem.

Posted on Dec 22, 2016

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  • GMC Master
  • 9,587 Answers

The speed resistor is open. The resistor is downstream of the blower motor and needs the fan to blow on it to cool it.

Posted on Dec 21, 2016

  • Freddy Dec 24, 2016

    The fan doesn't blow on the resistor module. It is a common problem on this vehicle for the module to fail. Also make sure the connector is not overheated or damaged from overheating.

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I have a 2004 GMC Envoy XUV and the blower motor only works on high. I would like to repair, please help


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