Pontiac Grand Am Problem Report
Pontiac Grand Am Loss of One or More HVAC Blower Motor Speeds
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. - Visitor
Lost speeds 1-3. 4 and 5 work fine. - Shagyfelix
The 5th speed on the fan doesn't work. I tried replacing the resistor, fuse relay and switch. Still not fixed. - Visitor
I have this problem too.. The fan works on every speed except 3. What exactly is the way to fix this? - BigReox7
Doesn't work at all. - Visitor
Only blows air out on 3,4,5 have 99 been like that since 2003. Never fixed it. - Visitor
Speeds 1, 2 , and 3 do not work - Visitor
Speeds 1-3 not working. - Visitor
lower speeds stopped working first, 1-3, then 5 went out, only 4 was working. now it's dead. - Visitor
Bought the car in summer of 2014 and noticed that speeds 1-3 do not blow out heat/ac. - Visitor
heater works on high only - Visitor
Lost speeds 1-3 on the fan. Only 4 and 5 work. - Visitor
It only works on #4. - Visitor
Speeds 1-3 don't work - Visitor
#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. - Visitor
Fan speeds quit working one by one until only the highest fan setting is left working.... at least for now! - Visitor
Blower motor does not operate at speed settings 1 or 2, but works fine at 3 or above. - Visitor
HEARTER DOSE NOT WORK ON 5TH SETTING - Visitor
fan speed 1-2 do not work fan speed 3-4-5 do work not fixed yet will try resistor. - tatoomike
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. - jlcargill
Control, blower motor switch on dash comes on only on high (5)when ever it wants too! Removed s...
No heat/air at all on any speeds. Have gotten under the dash but have come to the airbag. No h...
blower turns on intermittently with ignition off,blower switch off
I have replaced relay 3 times, resistor 4 times, blower motor 3 times. Used different brands f...
fan switch worked on low and high only,then stopped altogether