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97 GrandPrix fan knob


Forward1
08-24-2007, 04:31 PM
If anyone can help that would be great..My fan knob only blows air on speed 5, speed 4 is a trickle. No idea why this happened? Help.

Thanks in advance.

dave6558
08-24-2007, 04:50 PM
dealer replaced the switch on my 2002 for that same problem

richtazz
08-24-2007, 09:23 PM
Your problem is the blower motor resistor (or blower control module if you have Auto climate control). Very common problem in Grand Prix's.

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