2001 Grand Prix Heater Fan Switch

2001 ALL OTHER MAKES ALL OTHER MODELS
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BWHEBBY
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144,000 kms. The blower motor failed about 2 months ago and at which time I replaced it with one out of a '02 Grand Prix. At that time I noticed that air was not moving through the vent ducts with the fan switch at position 1 - not a big deal because speeds 2 thru 5 still worked. About a week ago I lost speed 2 and now I would like to fix the problem. Where do I start?
Feb 8, 2006 at 1:03 PM
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2CARPRO JACK
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probably the fan speed relay or resistor
Feb 8, 2006 at 5:17 PM