Last post on Oct 26, 2013 at 6:48 AM
You are in the Pontiac Grand Prix
What is this discussion about?
Pontiac Grand Prix, Heating / Cooling, Sedan
#224 of 233 Re: 2007 Grand Prix [sean62]
Dec 07, 2011 (4:52 pm)
I have the same problem have had the thermostat replaced and system bled twice. Any ideas would be greatly appreciated
Dec 08, 2011 (3:59 pm)
Get a thermostadt from the dealwer not a car parts store cuz the dealer part is the right one and the problem will be fixed. If you get it from the auto store it is a general thermostadt and can be used in that type engine
#226 of 233 Re: 2000 Grand Prix GT Climate Control Problem [rgh1016]
Jan 31, 2012 (5:03 pm)
I have low air flow in automatic climate control heating mode. In AC mode, fan goes on full blast at 60 deg F. In heating mode, with control set to 90 deg F, I get some flow. Went to dealer, and was told probably blend door. Later told it was blocked heater core - over $600 to repair. Didn't go through with repair as it may be something else
#227 of 233 2005 Pontiac Grand Prix GT a/c problem
Mar 05, 2012 (6:56 pm)
I think I finally figured out why my A/C wont work anymore. The instrument cluster went bad but I have a stupid question. I have found a part but the part numbers DO NOT match. Does this matter? Why do part numbers have to be the same? As long as the part is compatible with my car, then it shouldn't matter, right?
Any and all replies appreciated.
#228 of 233 2005 pontiac grand prix GT
Mar 05, 2012 (7:06 pm)
If I found replacement parts, does the NEW part number have to match the OLD part number? Part numbers shouldn't matter as long as the part is compatible with my car, right?
#229 of 233 Re: Heat goes off and on [yakkymom]
Jan 09, 2013 (10:56 pm)
Its been some time, but im having this same issue... looking for advise
#230 of 233 2003 Grand Prix heat not blowing out of vents
Jan 23, 2013 (11:23 am)
I have a 2003 Grand Prix and the blower appears to work fine and the heat appears to be hot. The problem is that you can hear the fan blowing very well, but does not appear to come out of the vents that you have directed it to come out of. For instance, if you turn it on defrost, very little comes out. It seems like it wants to come out the correct vent but something is holding it back. Anyone have any ideas where to start? The car does not have climate control. It has manual switching with driver and passenger heat controls
#231 of 233 Finally fixed
Jul 11, 2013 (6:35 am)
Hey guys, after a few years of putting up with my problem I finally got it fixed.
First, I know that not everyone in this thread is having the same problem, so I will describe my solution so that you know if it pertains to your problem or not.
- My fan would not work on any setting except 5 (highest).
- My headlights would turn on and off quite rapidly, but not constantly. The fan seemed to have an impact on when the headlights would flicker. If I had it set on anything inbetween off and 5 (high) the headlights would flicker. To stop them, I would simply override the automatic headlight sensor and just turn them on. (Grand Prixs have automatic headlights, but there is a dial that you can turn them on just like any other car out there)
- My little display screen was really dim and would also flicker and glitch out with the same consistency as the headlights. The information was really hard to see and most of the time it wouldn't display the correct information. This is the screen that shows you your boost if you have a super charger, which doors are open, your average MPG, range, and oil life.
- I was not able to turn my rear window defrost on or toggle the A/C button.
- Finally, every once in a while all of my electronics in the car would just short out and everything would turn off and then back on. This included everything mentioned above and also my radio and instrument panel lights. The car would remain running, however.
Just a couple of months ago my car started doing something new. Occasionally, it wouldn't even try to turn over when I turned the key. At first this happened quite rarely and it seemed to resolve itself if I rocked the shifter back and forth from park into gear and back. In reality that wasn't doing a single thing, but I thought it was.
It kept getting worse and worst and just the other day I tried for 10 minutes and the car still wouldn't start. I had enough and brought it in to get fixed. I thought it was the neutral safety switch, so that is what I told the mechanic.
I got a call and they told me that it was my ignition switch that was bad. Okay. "Fine", I thought. That will fix the problem of my car not starting.
I was in for a big surprise. Once I got back in the car... everything worked... everything. YES!!!
So after all of this time, all of my electrical problems were due to the ignition switch!!! Who would have guessed?
$550 and a day later and all of my problems are solved. Hope this helps someone else. It might save you a couple hundred of dollars if you can do it yourself or it could spare the mechanic looking for the problem, which will save you money.
#233 of 233 2004 Pontiac Gtp ac switch issue
Oct 26, 2013 (6:48 am)
I am a little stumped on this one. When I turn my fan on my a/c switch with the snowflake symbol is always coming on now. It didn't do that before. I have done some light troubleshooting. When I turn the ignition without starting the car, I turn the fan onto a low setting and it comes on, I pulled the fuse out from the panel on the passenger side fuse box and the fan stopped working but the light also went out. As soon I put the fuse back in the fan came on and the light was back on. All of the fuses for it are good. I've read some other info from other sources that said it could be a board that controls the ac climate controls might be going bad.
I just want to be sure if its not the actual climate control panel itself.
Any info and help would be greatly appreciated.