Last post on Nov 18, 2013 at 11:03 PM
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Pontiac Grand Prix, Heating / Cooling, Sedan
#1 of 44 AC/Heater Fan issue
Aug 20, 2009 (7:45 am)
I have an issue with the AC/heater fan that seems a little different from the other threads here. I have a 97 Grand Prix GT without climate control.
No matter what settings I put the fan on, I get nothing more than just a trickle of air out of all the vents (defog, head, feet). When I change the speed settings, the fan gets louder, like its trying to blow air harder, but still nothing more than a trickle of air from the vents. Changing the vent selector doesn't affect the airflow out of any of the vents. If I turn on the AC, it seems like the trickle of air does get cool eventually, but not nearly enough to make the car comfortable.
Has anyone seen this issue, and can point me in the right direction to fixing it?
#2 of 44 blower motor work only when warm
Nov 20, 2009 (8:25 am)
i have an 02 izuzu trooper who's blower motor works only after driving about 20 minutes or more. you can turn car off, and the blower will not work again for several more minutes. sometimes it startes right up with car. fuses, relays and wireing all check out! really need defroster. colorado
#3 of 44 my heat
Dec 05, 2009 (7:57 am)
my heater only works on 5.what can i do to fix this?
#4 of 44 my heat
Dec 05, 2009 (8:00 am)
my heater only works on 5.what can i do to fix this?my car is a 2000 pontiac grand prix
#5 of 44 Re: my heat [sonyar]
Dec 11, 2009 (3:54 am)
I had this problem and I had a mechanic replace the ignition switch after reading other forums.
#6 of 44 Re: my heat [sonyar]
Dec 30, 2009 (8:38 pm)
I had the same issue with my 2001 Gran Prix GT, in my case not only the AC, blower fan and daytime driving lights and auto headlights plus my rear window defogger. It turned out to be the ignition switch. All these components work through it. Once replacing the ignition switch it solved all my problems especially the fan just working on 5.
#7 of 44 2001 Pontiac Grand Prix fan won't shut off!
Aug 23, 2010 (12:14 pm)
I have a 2001 Pontiac Grand Prix GT and my fan will not shut off. It will continue to blow constantly even with the car turned off. I have to unhook the battery to get it to shut down. I recently put in a new battery and it worked fine for about a day. Any ideas?
#8 of 44 05 grand prix ac/heat problem
Sep 30, 2010 (1:40 am)
i have a 05 grand prix gt. At any given time that you start the car the ac/heat wont come on. no blower, no noise no nothing. as for other times it works just fine. I ve read so many post that i don't know where to start. anyone have the similar problem that has had it fixed? where should i start?
#9 of 44 Re: 2001 Pontiac Grand Prix fan won't shut off! [bmsmith7499]
Jun 05, 2011 (12:25 pm)
I have the same problem, and instead of unhooking the battery I simply pulled the 30 V HVAC fuse in the glove compartment fuse box to get it to shut down.
#10 of 44 overheating HELP
Jun 11, 2011 (2:23 pm)
1992 3.1 PONTIAC TRANNPORT RUNNING HOT REPLACED THERMASTAT FAN RUNS NEED SUGGESTION ANYBODY