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blower blows hot or cold air while driving.

L

lifedeerhunter

New member
when i don't drive nothing comes out and when i start driving heat will come out when i have it on hot and the same for the cold. and the fan speed is off too. so it is the blower resistor or something else.
2002 grand prix SE 3.1L
 


sounds like the resistor, or the blower motor is dead.

also seems like you have no control of the blend doors. they control hot and cold air.

can you change where the air flows from, defroster, vent, floor? if not look for a vac line off the pass side firewall to the engine, it could be broken off under the hood. that line is what powers the air flow direction.
 
everything works. When I move it to hot or cold that air will come out. It doesn't blend. It just keeps running when the switch is off
 
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