The heater/AC blower is only working when on the high position. How do I fix this?
Thank you!
Thank you!
Oct 28, 2008 at 2:09 AM
2003 Pontiac Grand Prix Fan blower only works on high
VACMAX
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Your blower motor resistor has failed and high is the default so you can still get heat. The resistor slows down the blower motor for lower fan speeds. I think it is located on the passenger firewall down by the front passenger foot well. Look for the wires going into your blower motor. The resistor isn't too expensive and easy to replace.
Oct 28, 2008 at 2:20 AM