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Pontiac Grand Prix Water Leak

48 messages,  Last post on Dec 13, 2008 at 9:56 PM

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What is this discussion about? Pontiac Grand Prix, Auto Repair, Sedan

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#19 of 48 Re: Water Leak [debmc03] by brybry Dec 14, 2006 (10:02 am)
Replying to: debmc03 (Oct 19, 2006 6:41 pm) I followed ndclark message #5 instructions. I fixed the problem also and it is simple. Leave the wipers in the vertical position on your windshield (no need to remove it). Lift the hood. On the right side or passenger side you'll see a plastic cover with a grated vent on it, this is removed by unscrewing or prying on the plastic clips holding it down(2 of them)plainly visible. Remove your washer fluid hoses that are just clipped on and can be easily replaced. Remove the cowl and you will now see your blower motor down below. This is where the water is getting into your car. On my car the sponge water channel about 2 feet long had almost fallen off. I put a bead of silicone in the slot where the sponge slides onto the steel lip to hold it on so it won't fall off later. The bulk of the sponge seal points upward. Take note of its orientation and location before you remove it if it is still on the lip. This seal directs water to the proper drains away from the blower motor. It took me about fifteen minutes to correct. Hope this helps,good luck. Replies to this message: lpatterson (Aug 27, 2007 5:45 pm)
#20 of 48 Re: Water Leak [eric227] by mooky_mike Dec 30, 2006 (7:18 pm)
Replying to: eric227 (Oct 23, 2002 10:46 am) (2000 G.P-S.E) Just found this site...wish I woul have found it earlier.Have had tones of the same problems. As for the water leak I have a major one as well I get a swimming pool on the passangers side floor.Have had the heater motor and resister replaced 2 times.Getting bad again so I'am getting 2007 GXP next month...I still love My grand prix
#21 of 48 Re: Water Leak [condor] by appjej123 Mar 14, 2007 (4:37 am)
Replying to: condor (Feb 23, 2005 5:06 pm) I am glad I found you guys!!!!!!!!!!!!   I have a 2000 GP GT with 79k on it.   I have been experiencing all the problems regarding the water leak (for a year or so) and the problems with the blower fan/resister board/daytime running lights.   I shared this information with my mechanic, who was working his thru the problems to this.   He's going to finish today, with the help of this info, and hopefully be able to keep the bill down a little.   My car has had one other "sporadic" issue. The car would occasionally stall, typically during SLOW, RIGHT turns. I'm hoping that may be ignition related as well.
#22 of 48 stardate69@sbcglobal.net by craig32 Apr 11, 2007 (3:24 pm)
Anyone had any problems with 200 GP'S, SE models??
#23 of 48 Water Leak - My Solution by norris65 Apr 21, 2007 (5:17 pm)
Hello, my 2000 Grand Prix has had a small too. My friend has a 2002, his car had real flooding. We had replaced the resistor packs and blower motors, last fall. (Funny my original blower is back in now, dry out and a little WD40 & it was good to go)   Note the rubber guards and seals were tight and in position, on my 2000 Grand Prix.   Today we reattached my friends rubber guard and sealed it though. Then we vacuumed out both cars the blower motor areas, reversed the shop vac and blew the vents out.   Replaced Cabin Air Filters, then installed home made water deflects. Air conditioner worked fine today.   These deflectors will put and end to the leaks.
#24 of 48 2000 GP Trunk Leaks by cobbler63 Apr 22, 2007 (10:49 am)
Trunk Leaks seal has no cracks or tears. Taken to several dealer and they can not figure out why I have water standing in my truck. Any suggestions. Replies to this message: gtprix (Jun 25, 2007 11:43 am)
#25 of 48 Re: Water Leak [eric227] by dtrombley Apr 24, 2007 (1:34 pm)
Replying to: eric227 (Oct 23, 2002 10:46 am) I have a 2005 Grand Prix and my floorboards passenger front and rear were soaked with rain water. It took my 2 1/2 hours to vac all the water. Just this morning I took it to the dealer. He told me the cowl was leaking soaking the floor and the trunk . He also said it would coast 310.00 to fix it. Iam pisst because I bought an extended warranty and they said it wont cover the leak. So I asked why did I buy this warranty . They said to cover the car but it wint cover the leak. I hate car dealers.So now it is being fixed for 310.00
#26 of 48 Water Leak by appjej123 Apr 25, 2007 (4:47 am)
That is awful! They KNOW it's a design flaw. It's been happening since the 90's! Mine is a 2000. I had to have my windshield replaced due to a crack and I'm hoping that since I told them and asked them to that they added silicone or something to keep the seal.
#27 of 48 Re: 2000 GP Trunk Leaks [cobbler63] by gtprix Jun 25, 2007 (11:43 am)
Replying to: cobbler63 (Apr 22, 2007 10:49 am) I had a similar problem, it was the tail fin silicone around the bolts. There are six nuts attaching the fin to the trunk lid (bolts are embedded in fin). The silicone around the bolts had deteriated and was allowing water in. I cleaned up the area, apply a health layer of black silicone and no more leak. Hope that helps.   My problem with leaks is when I run the AC. I it hasn't rained in days and yesterday I was blasting the AC on a long ride and water starting pouring out of the passenger side floor vents after an hour of running it. It has to be the AC somehow I'm just not familiar enough with where the water run off from the AC is at.

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