Question about 2002 GMC Envoy XL

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AC blower fan no working on any speed. Somtimes works on speed 5.

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The blower motor resistor needs replaced.Would also check the harnesses going to the resistor and blower motor for signs on melted wiring or poor connection.You may also need new pigtails if there is evidence of of wiring damage.

Posted on Aug 31, 2010

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