Blower works on high only
Asked by Polzin6510 Oct 21, 2018 at 04:22 PM about the 2000 Pontiac Grand Prix SE
Question type: Maintenance & Repair
Have a 2000 Grand Prix blower motor works on high only replaced resistor tried
different blower motor that I had on the shelf from previous Grand Prix replaced
ignition switch still works on high only any suggestions?
3 Answers
Still sounds like a resistor to me. Was the replacement a new one, and was it the right one? Might need an electrical shop to help you out on this one.
MHonabarger answered 5 years ago
Transistor in the blower control module is bad (shorted) I have a bag of them off ebay, Chinese but last longer. If u cant solder, a new one is $100. Make sure you keep the receipt and buy it locally because it will probably not last long. 1 month - a year usually
MHonabarger answered 5 years ago
Also keep in mind, if the blower motor commutator is getting dirty it will draw higher current and take out the resistor also. Rule of thumb is clean the motor com if it is within your ability, and check bearings. if not I would highly recomend replacing it along with the resistor. Keep in mind if it still runs on high, take the resistor back because it IS Gauranteed defective & try another. I have put a couple in bad off the self. (People, have a bad motor, burn the new control module up and then take it back burnt up unknowingly because they still had the same problem come back.)
