Pontiac Grand Am Problem Report

Pontiac Grand Am Loss of One or More HVAC Blower Motor Speeds

(49 reports)

The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch.

fan speed only works on high setting. -
Lost speeds 1-3. 4 and 5 work fine. -
The 5th speed on the fan doesn't work. I tried replacing the resistor, fuse relay and switch. Still not fixed. -
I have this problem too.. The fan works on every speed except 3. What exactly is the way to fix this? -
Doesn't work at all. -
Only blows air out on 3,4,5 have 99 been like that since 2003. Never fixed it. -
Speeds 1, 2 , and 3 do not work -
Speeds 1-3 not working. -
Bought the car in summer of 2014 and noticed that speeds 1-3 do not blow out heat/ac. -
heater works on high only -
Lost speeds 1-3 on the fan. Only 4 and 5 work. -
It only works on #4. -
Speeds 1-3 don't work -
#1 on ac switch went out first, then 2, 3, and 4 after that. After I changed the resistor, then the blower motor went out. Changed that as well. Now it's doing it again. -
Fan speeds quit working one by one until only the highest fan setting is left working.... at least for now! -
Blower motor does not operate at speed settings 1 or 2, but works fine at 3 or above. -
HEARTER DOSE NOT WORK ON 5TH SETTING -
fan speed 1-2 do not work fan speed 3-4-5 do work not fixed yet will try resistor. -
check all associated fuses and relays first! my problem -blower motor did not work at all - replaced blower motor and plug(was corroded). blower then only worked on high(5). replaced heater resistor. checked resistance of resistor block and found it open. you can also check the fan speed switch by taking voltage readings at the resistor block plug to verify function. -
Have not repaired yet. Received quote of $200 for repair. Have learned that if only #5 works, it may only be the fuse. If #4 and #5 work, it's the resistor. Had repaired at same time heater core was replaced. -
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