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Pontiac Grand Prix Heater blower relay switch

144 messages,  Last post on Nov 16, 2009 at 6:26 PM

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#121 of 144 blower motor problems and ac problems by auauau Feb 17, 2009 (7:35 pm)
so we know that the rain draining on the passenger floor could be the caused of the problems to the wiring and possible the blow motor had same issues except that when blower was working for me that 1 to 4 was working and the 5 wasn't on occasion, also don't know about my lights if they were woking when the blower motor was working I have one of my fog lights out but seems all my lights are working when the blower isn't as I took a look tonite tried various things but no blower tried turning over ignition playing with the wiggling the key lock to see if it was a short to see if blower would come on it didn't. It seems that had difference with other peoples problems which I may think it could be the blower. I checked all the hoses to see if was running hot seems all of them were also changed thermostat wasn't the problem checked fuses under hood they seem all ok not to sure about the relays also took a look at the blower itself looks like water all over it from rusty water marks from the rain and probable washing the vehicle. Cause everything is fine except the blower and also had the dimming and then ok on occasion within a split second or two so anybody have sugestion on that problem? a 1997 grand prix GTP model
#122 of 144 Trouble with my 98 Grand Prix GTP heater/AC blower motor by az_98gtp Mar 07, 2009 (5:17 pm)
Hello there, I am having trouble with my 98 Grand Prix GTP heater/AC blower motor. To begin with, I was having trouble with only getting heat from the passenger side vents and cool air on drivers side as well as my blower motor was having extremely loud screeching noise coming from it. I still had all 5 motor speeds the best I can tell or remember.   After hunting around for answers on the Internet at different web sites, I found this link saying to change the left/right side door actuator. http://www.w-body.com/forum/index.php?topic=41201.0 After taking my actuator out and finding the gear was broken like shown at the link, and thought I had myself a quick fix and ran down to the local wrecking yard to get a good one.   I replaced that and proceeded to fix the blower motor noise. I took the motor apart and cleaned and oiled the bearing on it and put it back together. After I plugged it back in, the blower motor would only turn on for a few seconds and then turn on for a few more seconds real soon there after. It does this every time I turn on the heater control and shut it back of again. I have tested 12v to the motor and it does run just fine.   I proceeded to replace blower motor control module and still no luck getting the blower motor going. Also I do have heat in my seat, HUD works fine and no other noticeable problems besides the blower motor not coming on. Is there a way of resetting the system in any way at all? PLEASE help! Thanks!!!!
#123 of 144 Re: Electrical problem when turning on blower motor [christy10] by jiggles04462 May 06, 2009 (7:57 am)
Replying to: christy10 (Apr 05, 2007 2:50 pm) It appears a whole slew of problems can arise with a bad ignition switch. I recently bought a used 1999 Grand Prix and was told (when I bought it) that the key doesn't always come out of the ignition and the switch will need to be replaced. I got around it for a few months by manually removing the key. First the lights on the radio went, then the blower on the heater followed. All seemed to be going ok until yesterday when the car did nothing. It has no power at all, but the battery appears to be holding a charge. I can't even open the truck with the button in the glove box. Could these problems all be related to the ignition switch?
#124 of 144 Re: 2003 Grand Prix Radio then ac goes out [elfrieda] by elfrieda May 06, 2009 (8:46 am)
Replying to: elfrieda (Sep 29, 2008 2:36 pm) Well, I am replying to myself, seems the ignition switch started shorting out the radio, cd player, etc. When I replaced that, The AC/ Heater/Blower all worked again but had to replace the Radio/CD.
#125 of 144 Grand prix 98 by jucee May 12, 2009 (11:40 am)
Hello I have a GP 98 and the ac is blowing but not at the level it's on it's blowing cool but at level 1 on 5! Also, it cuts off once the RPM starts going crazy! I just had the ing switch changed b/c the key wouldn't come out.
#126 of 144 engine fire..problem solved by lberg May 12, 2009 (6:23 pm)
Many issues finally climaxed with an engine fire while shut off...nice. Part of the 3.8 recall for engine fires?????
#127 of 144 Please help, I'm all fogged up! by beamer22 May 13, 2009 (9:04 pm)
Here is my problem, can anyone help.? I have a 2001 Pontiac Grand Prix Coupe., I had lots of ignition problems in the past, key not coming out, vehicle can't be shut down transmission won't lock etc. All fixed by dealer on warranty. Now the daytime running lights and the auto night lights will not work, The rear defogger, fan blower and A/C switches will not work. The dealer diagnosed it with a fan blower control switch problem. Approx.$ 500.00 in repairs. After going through the trials and tribulations of the ignition and security lock outs I am looking for a definitive answer. Can anyone one give me one?
#128 of 144 Re: 1999 Pontiac Gran Prix blower motor control module [harleyhop] by gtmn May 30, 2009 (5:13 am)
Replying to: harleyhop (Oct 14, 2008 4:59 am) I have the exact same issue with 2000 Grand Prix where the running lights go out when blower switch is in 1-4. Do you have to replace ignition switch? Replies to this message: segrandprix (Jun 27, 2009 7:53 am)
#129 of 144 Pon Grand Prix Heater Blower Relay Switch by segrandprix Jun 27, 2009 (7:50 am)
I just replaced my heater blower and the ristor pack and everthing working fine and also it took care of the key sticking in the switch. I have a 2002 SE Grand Prix and I got the blower out of a 2000 model at the junck yard. The ristor pack was differant looking but works fine, to me it looked like an older style but also looked like it was made better. You will need a 5.5mm socket and ratchet wrench or a torx bit and a swavel and small extension 1/4 inch drive. The fan is located under passenager side dash. Its not hard to do, but is a pain to get to coz u have to lay under the dash and coz of that takes some time.
#130 of 144 Re: 1999 Pontiac Gran Prix blower motor control module [gtmn] by segrandprix Jun 27, 2009 (7:53 am)
Replying to: gtmn (May 30, 2009 5:13 am) Have u looked into replacing the ristor pack by the blower motor

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