Last post on Jan 05, 2013 at 8:46 AM
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Pontiac Grand Prix, Sedan
#207 of 217 fan/auto lights/defroster/heated seat not working
Nov 08, 2011 (4:26 pm)
I have a 2001 Grand Prix and sometimes my fan/auto lights/defroster/heated seat will not work all at the same time. Sometimes it will just kick on while I am driving. Sometimes it works just fine. I need to get this fixed soon, though, since winter is coming. Any ideas?
Also, my gas gauge doesn't work anymore. It just fluctuates up and down.
Any help would be appreciated. I need to do this as cheap as possible
#208 of 217 Re: 2004 Pontiac Grand Prix [sweetrats]
Nov 11, 2011 (11:30 am)
Had the same problem. the hood cowl is the problem, here in minnesota the cowl buckles in the cold weather and water runs off the windshield under the cowl through the cabin filter on to the blower fan and resistor and rusts/shorts them out. My solution after I replaced the fan and resistor, I replaced the cabin filter one last time then used RTV black silicone caulk to seal the cowl to the windshield, haven't had a problem with water since.
#209 of 217 Re: 2004 Pontiac Grand Prix [brewmeisterdan]
Dec 29, 2011 (2:23 pm)
Recently purchased a 2007 Grand Prix with similiar problems. Replaced blower motor because of excessive noise. Obviously water leaked onto it and probably started rusting up on the inside causing the bearing to squeek. Also have same problem with heater just cutting off. I have read other posts, just about all of them. The thing is mine doesnt cut off on just low speeds, but on all speeds. Was wondering if that still points to the blower motor resistor? Seen others saying it also could be ignition switch. I will take your advice and seal up the cowl with silicone for sure. Was wondering if anything I can do or should look for to be wrong also? Thank all of you'se for your advice and it is greatly appreciated. If you can please message back using my email address that way I can keep an eye out for a response. mrqt3812yahoo.com Hope you had a good holiday weekend and Happy New Year to you and your family.
#210 of 217 Re: 2004 Pontiac Grand Prix [mrqt3812]
Dec 29, 2011 (2:45 pm)
I had someone I know look into it, and they said my main wires were corroded. They cleaned those off and I haven't had any problems since yet. Try looking at that first, maybe, before purchasing anything.
#211 of 217 Re: 2004 Pontiac Grand Prix [pam54]
Dec 30, 2011 (9:56 am)
This is what I been thinking it was. You're the first to post anything about corroded wires.
#212 of 217 Re: Heater blower relay switch [perplexed3]
Dec 30, 2012 (3:27 pm)
My car is a 2002 grand prix i already change the blower resistor and it still doesnt work...i used to work only on level 5 while ago it stop working at all...please help whant can i do now..
#213 of 217 Re: Heater blower relay switch [marioo]
Dec 30, 2012 (6:56 pm)
Could be the motor itself. Mine would turn on but didn't have enough amps to run. Went and got one from wrecking yard and it worked fine. I know I have water that leaks in there when I go though the car wash and when it rains hard. If you have the same deal it might be worth checking.
#214 of 217 Re: Heater blower relay switch [az_98gtp]
Dec 30, 2012 (9:33 pm)
I realize there water coming through...the motor look rusty....i probably change the motor if doesnt work I think would be the ignition. Switch
#215 of 217 Re: Heater blower relay switch [az_98gtp]
Dec 30, 2012 (9:48 pm)
Do you know around how much is the blower motor??
#216 of 217 Re: Heater blower relay switch [marioo]
Jan 05, 2013 (8:46 am)
I paid $30 at the wrecking yard here in Phoenix 2 years ago or so.