Question about 2002 Pontiac Grand Prix
Your blower motor resistor, located under the passenger side dash down by the floor next to the blower motor, This will cause the motor to only work on high speed. Gm pt#89019101 around $60
Posted on May 12, 2009
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Posted on Jan 02, 2017
Check the blower motor resitor. Use a 12v test light at the switch and notice the bulb brightness change as you switch settings.. Probably have a bad blower resiter.
Posted on Jul 07, 2009
Sounds like the blower motor resister is bad, it regulates the speeds of the blower motor, it should be located somewear around the blower motor, 2 screws hold it in the heater box and it has a electrical plug to it.
Posted on Sep 30, 2009
Not exactly sure if it's an easy fix without looking at it , but is seem to be the switch is going out, usually have to take dash trim off to expose the bolts to get the switch housing out. Then the switch will come off from the back side , and you'll have to unplug the wireing plug from it, to replace it.
Posted on Oct 06, 2009
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