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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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#111 of 144 More of the Same Plus by lberg Dec 17, 2008 (5:43 pm)
1st the ignition switch would not go back to the off position but I'm able to stick a screwdriver up the hole under the column..works good 2nd gas gauge freaks out..up and down..have to watch my trip odometer 3rd the radio digits go haywire the come back 4th winter and I freeze windows up on inside 5th blower doesn't work..managed to " unthaw " it and worked..sort of 6th now it only works in the 5 position 7th Sell this 2001 Gran Prix???? Kinda depressing
#112 of 144 Re: 2004 Pontiac Grand Prix Blower Problems [KAY65] by 348ironworker Dec 20, 2008 (7:16 am)
Replying to: KAY65 (Dec 17, 2008 9:51 am) I am currantly experiencing the same condition with exact automobile and have come to learn the problem is called blower motor resistor. Thats what NAPA autoparts use for nomenclature. Others call it a module. Price ranges from 65.00 to 100.00 at dealerships. The fasteners used are metal rivots which does not replacement as easy as i had hoped since it's 15 degrees outside and i have no garage.   hope this helps and you are able to enjoy the holidays. Replies to this message: craig32 (Dec 20, 2008 8:03 am)
#113 of 144 Re: 2004 Pontiac Grand Prix Blower Problems [348ironworker] by craig32 Dec 20, 2008 (8:03 am)
Replying to: 348ironworker (Dec 20, 2008 7:16 am) Careful!   Although, apparently, the 2 things that are the most common to go bad (eg., the blower motor itself, or the resistor, just outside the blower), many people went & bought the resistor, only to find they spent money for nothing, as this wasn't the cause.   Don't install the new resistor,...just , carefully, plug it in, to see if this fixes things (that way, you can retiurn it for a refund, if it doesn't!).   I haven't had air/heat for 2 years (but live where climate is bearable).   And, same as most: fan speeds stopped working until only #5 setting would work,...but then, not even that!   It should be asimple fix (anyone know how to test the body control module, without removing half the dash???   There must be a way of feeding getting the blower to work, & still send power to work the neccessay vacuums, other necc systems for air/heat, without fixiing the ignition wiring (it's a BIG job!).
#114 of 144 blower will not engage 10 minutes after starting by defosto Jan 18, 2009 (11:44 am)
I have a 2004 grand prix gt.When I start the engine and turn the heat on the blower will only come on after about 10 minutes of driving.The blower works fine once it's running but if I shut the car and restart then I go through the same thing again.
#115 of 144 2004 grand prix blower will not run by defosto Jan 18, 2009 (3:20 pm)
#116 of 144 2004 grand prix blower will not run by defosto Jan 18, 2009 (3:20 pm)
I have a 2004 grand prix gt.When I start the engine and turn the heat on the blower will only come on after about 10 minutes of driving.The blower works fine once it's running but if I shut the car down and restart then I go through the same thing again.
#117 of 144 Re: Electrical problem when turning on blower motor [christy10] by toryb Jan 27, 2009 (8:15 am)
Replying to: christy10 (Mar 07, 2007 9:54 am) im having a prob with my 2004 grand prix i saw you mention the the ignition switch wires .im hoping thats whats wrong with my car but it also over heats too and cant figure out why . we changed the radeaitor and water pump and the thermostat can you help Replies to this message: KAY65 (Jan 28, 2009 9:42 am)
#118 of 144 Re: Electrical problem when turning on blower motor [toryb] by KAY65 Jan 28, 2009 (9:42 am)
Replying to: toryb (Jan 27, 2009 8:15 am) I got tired of dealing with this problem so I took it to the dealership. They said that it is a common problem with the Pontiac Grand Prix. After inspection, it was determined that the Resistor shorted out the Blower Motor. Both part had to be replaced. The dealership cost of the Resistor Module $92.80 and the Motor $164.10. Labor $273.74.   As for over heating... More sure that you are using GM Parts ONLY!!! Other brand parts for this car causes problems. Stay out of Advance & Auto Zone!!!   Good Luck!
#119 of 144 Heater fan by mkn1 Feb 11, 2009 (7:22 am)
OK... this morning I turned on the heater and it started out being normal then started reducing in speed. I then went to the different levels 2,3 4 and 5 with the same results. At level 5 it was blowing at level 1 speed and finally quit entirely. Is it the motor or relay or aliens.... 2003 Grand Prix GT, 162000 miles..... Thank you Replies to this message: mkn1 (Feb 12, 2009 7:15 am)
#120 of 144 Re: Heater fan [mkn1] by mkn1 Feb 12, 2009 (7:15 am)
Replying to: mkn1 (Feb 11, 2009 7:22 am) mkn1 continuation: In reading this forum further there are a few more symptoms; I no longer have to depress the brakes to shift into gear. There has been times that my radio display flickers. I can't get my ignition key out unless I physically release it by going under the steering column. Any help would be appreciated.....

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