Question about 2002 Pontiac Grand Am

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AC/Heater on 2002 Grand AM SE1 will only work on one speed

I have a 2002 Pontiac Grand Am SE1 and the heater/AC unit will only work when i have it on the highest speed for the blower. What causes this? both heat and AC work but only when knob is turned to number 5. Any suggestions?

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Before doing anything major to fix this, please check your fuses

Posted on May 05, 2009

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Chk. to see if you got a heater resister, it should be somewhere in the visinty of the blower motor 2 screws hold it in the heater box and it will have 4 or 5 wires in a plug going to it. samething happend with my truck and thats what it was. i also found out sometimes that plug with the wires to the resister burn, if thats the case you will have to chg. that too.

Posted on Jan 12, 2009

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