2000 Pontiac G A heater fan


Old 02-26-08, 09:32 AM
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Join Date: Aug 2002
Posts: 5
2000 Pontiac G A heater fan

The heater fan only blows on high setting. Why?
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Old 02-26-08, 05:07 PM
Join Date: Feb 2005
Posts: 579
The blower motor resistor is corroded and needs to be replaced, more than likely. These are known to corrode and have been redesigned on certain GM vehicles.

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