Pontiac Grand Prix Water Leak
I have a '98 Grand Prix that started leaking water to the passenger floorboard during severe rainstorms. This happened about a year ago. I took it to the dealer and they checked the A/C and found nothing plugged up. At the time the molding around the windshield on the passenger was loose. However, that didn't seem to be the cause either. They thought it might be a cowl leak and told me to take it an auto body/glass place. The auto body/glass place looked at it and said it wasn't a cowl leak but that it appeared a was missing near the vents for defrosting (underneath the wipers). When a hose was run over this portion of the car water would run in on the passenger side footrest. The body shop even demonstrated this for me with the carpet pulled up. They said I should go back to the dealer and ask about this apparent missing piece. Went back to the dealer and they said nothing was supposed to be there. They even showed me a new Grand Prix to compare to.
I ended up going back to the body shop and paying $300 for them to make something to run the water another way by the vents and I haven't had a problem since. Wasn't happy, but it was raining a couple of times a week and I was tired of bailing out my car.
I ended up going back to the body shop and paying $300 for them to make something to run the water another way by the vents and I haven't had a problem since. Wasn't happy, but it was raining a couple of times a week and I was tired of bailing out my car.
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If you carefully poured just a teacup of water down the vent grilles, you should see water exiting under the car. If you don't, the drains are clogged with bio-matter and the water rises and rises until it spills into the car itself behind the dash.
Remove Wiper.
Remove Plastic cover?
Then what?
Is the waterguard or seal visible at this point?
Any help is appreciated. Right now I have to change cars with my wife when it rains. She can park in a parking garage at work, I can't.
Please reply also if possible to rwarner1@columbus.rr.com
Thanks,
RW">link title
Also,how does one clear the things that run from front to back on each side of top of car? I dont know what they are called,but are tiny drain things.I think I heard someone say once that dealership maintenance people cleared theirs with a long pipe-cleaner thing,and ran it the length of the pipe.Just taking wild guesses now...........
Any more help and advice would be appreciated.reply on here or contact me by email if anyone has any words of wisdom Thanks
I hope you've had some success solving your problem. I recently purchased a 1999 Grand Prix and have not yet experienced any of the "leaking" issues that have been described by you and the others. However, I suspect there may be a similar problem with my vehicle because all of a sudden my heater motor will only operate on #5 (high). Like you, I don't want to replace anything until I know for sure what the problem is. Winter is already in full swing where I live so any help you can provide would be greatly appreciated.
Thanks
JD
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.
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.
Taken to several dealer and they can not figure out why I have water standing in my truck. Any suggestions.
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.
Well, we moved to Oklahoma, and for this year it has been very rainy and stormy. Water has been getting in the car nonstop. I finally decided I had enough when water was stagnant on the passenger rear floor board and took it to the shop (pontiac dealership)last week. My insurance covered it because they said it could be water damaged.
So the car sat up there 10 days. No solution. No problem. No one knew what was wrong. The insurance decided to replace the carpet that was molded by the rains without knowing what was wrong. At this point, I became really upset. Covering up the problem without fixing it. I also forgot to mention that water had gotten into the car 2 months prior during a heavy rain and knocked the a/c out. The a/c was fully functioning fine until that night. Well, the insurance decided it was not the water that knocked it out, it was a mechanical issue and my warranty covered it. So back to the story. I called the insurance and went off on them asking them how can give an estimate, release the car and try to cover up the problem without knowing the cause. This was 2 days before I picked up my car. They said they needed to see if they could find out what the problem was first before they could do anything else.
I decided when Thursday rolled around, I would just pick it up. It better be dry and if it happened again, insurance was going to pay. I was going to find someone that could diagnose the problem. There was still no resolution to this ongoing issue. Thusday was accompanied by a heavy rain. Friday rolls around. I am at work at 6:00 PM. Mind you it is sunny, and nice. I haven't felt the carpet since the rain, so I decided to. Front driver side. Dry. Front passenger side. Dry. Back driver side. Dry. Back passenger side. Wet. Wait a minute? Wet....So the water has something to do with something near rear passenger that is causing water to build up in the car. I called the insurance back upset. I told them that water is coming in the car still, and they need to fix this problem. They are obviously missing something. Well, the guy who handles my claims is off. Great. He won't be in until Monday. I told them well, I need this fixed now. I was advised I can take my car to a shop and be reimbursed for any out of pocket expenses. So I will take the car in immediately as soon as a shop opens while this is fresh. I also started researching on the internet to see if there are people that have this problem and low and behold....A lot of people seem to be having a problem with leaks. I was really surprised because it was a shot in the dark. I just want to know if anyone knows what is causing the water to first enter the rear passenger side? What could be causing this issue where water is getting into my car?
Temporary solutions seem to be that when I park the car DOWNHILL, water doesn't seem to get into the passenger side floor. When parking straight or even uphill, that's when the water starts coming in.
I'm going to try some of the suggestions on this forum to see if I can fix it completely.
I actually sold my car a couple of weeks ago.
Good Luck!
I have not had a problem with that spot again .
I took my car to the dealer they found a leak in the cowl .They also wanted to charge me $ 325.00 to fix it even though it was still under warranty. and still is
I plan to traed it in this spring
thanks fboy
Seems like lack of dilligence on their end as a means of cost saving. They're actually saving at the cost of their customers.
and im glad i did
Joey, GM Customer Service