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Help With Hvac Blower!

knightgang

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  • 2 months later...
pstokes99 New Member

pstokes99

Posted
Posted

The HVAC blower in my '01 GMC Sierra has been going out (all fan speeds or none at all) intermittently the past few months. It crapped-out twice this weekend so I started reading the the GM-Trucks.com blogs for some clues.

 

The Blower Motor Resistor seemed to be a common culprit, so I started checking the wiring harness connections on the passenger side just above the floorboard. The blower started working immediately. I noticed that one of the wires (Black Ground wire) was very warm in the wiring connector plugged into the resistor assembly. It was also corroded, so I removed the resistor and unplugged the wiring connectors.

 

The black ground had been getting so hot that it was melting the connector and resistor housing. I dug around on the internet and found the two websites below: 1) detailing exactly what the problem was and 2) providing an OEM replacement part web store. I should receive my new resistor and wiring harness next week for $82.94

 

1) http://www.sparkys-answers.com/2008/07/2005-chevrolet-silverado-blower-inop.html

 

http://store.the-electric-connection.com/s...ount2=713050484

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