Question about 2000 Pontiac Grand Prix

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Air won't blow on any setting

I was told it was my blower motor bought brand new one today and i still dont't have any air new motor did't even come on and i have checked my fuses and relays

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I had this problem a few years back. The garage had to replace what the dealer calls the blower resistor. It was actually a circuit board that lies under the dash. Under extended warranty cost $79 for the part. Can't remember what the labor cost.

Posted on Mar 31, 2009

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I have the same problem. I am in the middle of changing my ignition switch harness. I've come to understand that this is the problem most of the time.

Posted on Mar 17, 2009

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2 Answers

Weak blower motor

Check good voltage and ground for blower motor. Actuators under the dash may be restricting air flow? High speed doesn't usually use a resister.
Check for hvac trouble codes, in my part of the country, some of the national brand autostores will check codes for free, if there are any.
If you think problem with blower motor, itself, replace it. Sometimes, you can remove blower motor, use jumper wires for voltage and ground, using inline fuse, come off the battery, see if it blows like you think it should?

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Blower only works on the two highest settings

hi the blower motor is under the right side of the dash
remove the hush pannel
you don't have to remove the blower motor but it does give you more room
disconnect the wiring to the resistor there are two 5.5mm bolts that hold the resistor in
remove the bolts and slide the resistor out
install the new resistor and reassemble
hope this helps

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it sounds more like a temperature control module to me, that is the electronic module that controls your entire ac system, JUNKYARD PARTS


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