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Pontiac Grand Prix Climate Control/AC

192 messages,  Last post on Oct 07, 2009 at 12:19 PM

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What is this discussion about? Pontiac Grand Prix, Heating / Cooling, Sedan

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#28 of 192 95 Pontiac Grand Prix.Climate Control Problem! by rscorb Oct 03, 2005 (5:16 am)
hello all I have a 1995 pontiac grand prix GTP with a 3.4 My Climate control under the radio is not working right..The AC air will blow out from the defrost and lower vents by your feet. But will not blow out of the vents in the center on both sides..What is causing it to not switch to the center vents?? Thanks Randy Replies to this message: lpotier (Nov 10, 2005 5:13 am)
#29 of 192 Re: 95 Pontiac Grand Prix.Climate Control Problem! [rscorb] by lpotier Nov 10, 2005 (5:13 am)
Replying to: rscorb (Oct 03, 2005 5:16 am) Did you ever find out the reason for this problem? I have the same problem with my 98 GTP.   LP
#30 of 192 Has anyone fixed "the Leak"? by srmackin Mar 27, 2005 (5:35 am)
Hey fellas, new to this site, but have been feeling the Grand Prix pain for 2 years now. Actually, my 2000 GT coupe is a great car, except for one big problem: yep, that stupid leak in the passenger floorboard. Now, I've seen posts on this before. Under the plastic cowl is solid, that sucker is sealed to the windshield, and the weatherstripping is great. Someone told me the plastic cowl may be warped and I should get a new one. Dealer said it was $82.00 a side!!!!!!!!!!! But I really don't believe that's the problem. Someone else told me about the rubber grommit for the wiring harness under the carpet where it comes out just below the dash. The grommit wasn't flush, so I sealed that up good. But I don't think that's the problem, cause that's where the subframe connects, and wouldn't the car have to be moving for water to get in there? I've heard about holes in the firewall. DOes anybody know anything about that, and where it is? I had my glovebox out the other day and I was contorted under the dash, couldn't see crap there's soo much up there!!!!!!!!!!!!! Any help would be great. Like I said, the car's great besides this. But this problem is very annoying and the carpet is on it's way out. Only $120 for a new carpet, but I need this problem fixed. I was soo pissed at this the other day that I went to look at the new stang (they're still crap!!!!!!!!!!!!!!!!!!!!!!!!!). Guys, don't let this push me to get a Toyota. IF anyone has an answer, your help would be appreciated. Thank you in advance.   Scott M.God Bless you on this Resurrection Sunday!!!!! Replies to this message: 97redgp (Mar 28, 2005 5:18 pm) mostro186 (Apr 07, 2005 6:28 am) lbatchelar (Apr 12, 2005 4:55 am) mytfast (Apr 12, 2005 10:22 am) kwebb (Aug 26, 2005 12:39 pm) gressjj (Sep 04, 2005 5:35 am) and 4 more... chris1977 (Oct 13, 2005 5:04 am) yellacooki (Apr 26, 2006 6:03 pm) and 2 more... lbatchelar (Apr 12, 2005 5:00 am) storm3 (Apr 19, 2005 6:22 am)
#31 of 192 Same Problem (Flooded passenger side) by 97redgp Mar 28, 2005 (5:18 pm)
Replying to: srmackin (Mar 27, 2005 5:35 am) I have the same problem a lot of GP owners have. This problem just started this last winter. The passenger side floods when it rains or snows. I checked the drains...poured water in my sunroof bin, and also in the vents by the wipers. All the water pouring resulted in it draining out the bottom of my car near the wheel wells. So those seem good to go. The car floods just sitting there. Any other ideas or quick checks to figure it out? My fan (a/c and heat) has crapped out too. It currently only has 2 settings: off and super high. I checked the fuses and they seem to be in proper working order. Any cheap suggestions would be awesome. I am currently trying to save up some money so I can afford to fix the problems once I figure them out. Its a 97 grand prix gt with sunroof.   Thanks everyone.   - Shawn Replies to this message: mostro186 (Apr 07, 2005 6:28 am) lbatchelar (Apr 12, 2005 4:55 am) mytfast (Apr 12, 2005 10:22 am) kwebb (Aug 26, 2005 12:39 pm) gressjj (Sep 04, 2005 5:35 am) pete5147 (Oct 08, 2005 4:36 pm) and 3 more... chris1977 (Oct 13, 2005 5:04 am) yellacooki (Apr 26, 2006 6:03 pm) teelove1 (May 26, 2006 9:44 pm) and 1 more...
#32 of 192 Re: Same Problem (Flooded passenger side) [97redgp] by mostro186 Apr 07, 2005 (6:28 am)
Replying to: 97redgp (Mar 28, 2005 5:18 pm) Check your water diverter just behind the lower part of the windshield--I had to call a windshield guy because I thought it was the seal. You just lift the hood, take off the hard plastic shield where the windshield and wipers are look behind it. If there is a big piece of rubber hanging, just push it back up and onto the frame (it fits like a glove) and you are good to go. My mechanic couldn't figure it out and they thought it was my AC. As for your fan, it might need a lube.
#33 of 192 Re: Same Problem (Flooded passenger side) [97redgp] by lbatchelar Apr 12, 2005 (4:55 am)
Replying to: 97redgp (Mar 28, 2005 5:18 pm) I had a flooding problem to with the AC on. The mechanic told me there is a valve on the firewall that gets plugged and overflows.
#34 of 192 Leak by lbatchelar Apr 12, 2005 (5:00 am)
Replying to: srmackin (Mar 27, 2005 5:35 am) I had the same problem in my 2000. Pieces of a maple tree got stuck in a valve as part of the AC on the firewall. A GM mechanic told me just to take of the hose and clean it out. It had been plugged and with the AC on, it overflowed into the passenger side of the car.
#35 of 192 Re: Same Problem (Flooded passenger side) [97redgp] by mytfast Apr 12, 2005 (10:22 am)
Replying to: 97redgp (Mar 28, 2005 5:18 pm) I have both a 97 Gran Prix GT & a 98 Gran Prix GTP. The heat/cool blower motor on the 97 went up last year & the 98 is just now starting to act up. I've found the best source for replacement blowers is AUTO ZONE. I've also bought rotors & pads from them. They have a decent web site and offer the best availability to a large number of parts with really good prices & warranties! I have 7 cars (including 5 vintage) and use to buy from Pep Boys for over 25 years but they started reneging on their warranties & only relented after a class action suit was brought against them. As a result, I'll never buy from Pep Boys again & now buy from Auto Zone & in some cases from Advanced Auto Parts
#36 of 192 Water leak, 2 weather strips. by storm3 Apr 19, 2005 (6:22 am)
Replying to: srmackin (Mar 27, 2005 5:35 am) I had this same problem with my 99 GTP. I'd get a couple of inches of water on the floor board. There are 2 weather strips that you have to check. The one that caused my leak is about 16 inches long under the vent cover that is under the wipers. I had to use a small gear puller to get the wiper arms off after I removed the nut that holds them on. I'm sure there is a better way, that is just what worked for me. The piece of weather strip is press fit over the edge of the firewall and is supposed to divert the water to the sides of the fan opening. Mine was lying on the fan. It is a very weak press on fit. I glued it back on with silicon and have not had a leak since. Just make sure to mark your wiper arm position when you take them off. Now unfortunately it took me so long to fix the leak my blower motor is fried. All it does is squeal when I try to use it. I guess that's what I'm working on next weekend. I hope this helps. Good luck.
#37 of 192 Re: Same Problem (Flooded passenger side) [97redgp] by kwebb Aug 26, 2005 (12:39 pm)
Replying to: 97redgp (Mar 28, 2005 5:18 pm) I am having the same problem with my 1998 Pontiac Grand Prix GTP. Everytime it rains I get a floorboard full of water on the passenger side. I called GM and they told me they have not heard of this problem. Stacy at GM told me that people need to call GM when they have this problem. Please Please Please....if you are having the same problem or had the same problem call GM and complain. The number is 1-800-762-2737. I have even been told that they have been known to fix problems passed warranty. I have had my windshield replaced, sunroof checked, drain tubes blown out, the rain deflector underneath the cowl glued in place and still taking in water. I have replace a A/C fan motor already and this one is starting to squeal. I took a look at it and you could see a water line. So water must be getting into it too. Be prepared....the girl said you really sound frustrated...have you thought about trading your car in for a new one...I could transfer you to a salesperson. I told her I wanted my car fixed. I only have 84,000 miles on it and if I was going to buy a new one I would not be inclined to looking at a GM product. Does this only happen to owners with a sunroof???? I would appreciate all comments! Thanks everyone! Kym Replies to this message: gressjj (Sep 04, 2005 5:35 am) pete5147 (Oct 08, 2005 4:36 pm) robert718 (Oct 10, 2005 4:18 pm) and 1 more... tyrod (Nov 02, 2005 1:23 pm) chris1977 (Oct 13, 2005 5:04 am) yellacooki (Apr 26, 2006 6:03 pm) teelove1 (May 26, 2006 9:44 pm) cdamech (May 31, 2006 2:59 pm)

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