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Posted on Jun 11, 2011
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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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Jeffrey Turcotte

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  • GMC Master 8,991 Answers
  • Posted on Jun 11, 2011
Jeffrey Turcotte
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Hi, it is likely the relay in the resistor assembly has failed. Replace the resistor assembly.
To access the assembly, remove the right closeout/insulator panel (above the passenger's feet). Then remove the Instrument panel storage compartment door. The resistor looks like the pic below and is screwed into the heater box. The wires shown connect to the blower motor, and another 5-wire connector from the control panel is plugged into the resistor. Take the connector off and unscrew the resistor to replace. Please let me know if you have any questions, and thanks for using FixYa.


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