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https://www.youtube.com/watch?v=Cn0HeJP8bZQ
Oct 8, 2012 - Uploaded by GPVlog
04-08 Pontiac Grand Prix - Blower Motor Resistor ReplacementPart 1 ..... Loosen, but do not remove the two frontward screws, then remove the single rearward .... Pontiac Grand Prix StereoRemoval 2004-2008 - Duration: 4:27. by Factory Car Stereo ...Pontiac Grand Am ,HVAC, Heater Fan will not turn on.
It's not the blower motor that is bad, but rather the blower motor resistor. Next to the motor is the resistor and by replacing that the motor should work in all the speeds. This is a common problem on the 97-04 Grand Prix.
Sounds like a bad blower motor resistor.... is located under the passanger side dash in the blower box near the blower motor itself.... fairly easy job and very common problem. Good luck
WITH A TEST LIGHT CHECK THE BLOWER RESISTOR FOR POWER ON THE YELLOW, TAN, PURPLE, AND LIGHT BLUE WIRES. THE ORANGE WIRES CONTROL THE HIGH SPEED CIRCUIT. DO THIS FOR EACH POSITION OF THE BLOWER SWITCH.
THE BROWN WIRE ON THE HVAC CONTROL CONNECTOR 1 POSITION B COMES FROM THE HVAC FUSE 20 AMP. NO POWER ON THAT WIRE WILL CAUSE THE BLOWER TO NOT FUNCTION ON THE LOWER SPEEDS.
this could be one of two things .1 a bad blower motor resistor .2 a bad blower motor. if the blower motor resistor is bad i should work on high all the time.
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