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water leak through firewall?

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  #1  
Old 12-13-2010, 07:15 PM
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Default water leak through firewall?

I've heard that there is a screw somewhere near the cabin air filter that has a gasket around it, and when it breaks or becomes loose it causes water to seek in through the fire wall into the interior and leaves me a decent buddle on the passanger side floor board, now i've heard you can reseal it with epoxy or similar product,

Question is: where is that screw at? can some one snap a pic of it if possible or atleast direct me to a good DIY of how to repair it.

thanks in advance.
 
  #2  
Old 12-14-2010, 05:17 PM
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Do you have a sunroof? If so, that might be your water leak issue. They get clogged up.

If not, I'm calling a bad heater core leaking into your floorboard.
 
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Old 12-14-2010, 06:03 PM
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yea i do got a sunroof, but how do i un-clog it?
 
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Old 12-14-2010, 06:42 PM
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I'm not sure as far as Monte's go, but the drains for some sunroofs are underneath the cowl (plastic piece at the bottom of the windshield). You have to pop the hood, remove the cowl, and the drain's down there AFAIK
 
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Old 12-14-2010, 06:48 PM
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In the how-to section, we have how to change the cabin air filter

check that out
 
  #6  
Old 12-14-2010, 07:13 PM
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I have the same issue on my 2004 ss. I cleaned the cowl and I still have the leak. I hadn't heard about a screw. This weekend I will put her into the garage and see if I can find it. I will post on Sat or Sunday with the results.
 
  #7  
Old 12-22-2010, 06:09 PM
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I had the same problem,& as suggested by a member,checked the weatherstrip under the plastic at the cowl. Sure enough,it had fallen off. Put some silicone or weatherstrip adhesive on it,& put it back on. It should cure your problem.
 
  #8  
Old 01-18-2011, 10:05 AM
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Originally Posted by SS2004
I had the same problem,& as suggested by a member,checked the weatherstrip under the plastic at the cowl. Sure enough,it had fallen off. Put some silicone or weatherstrip adhesive on it,& put it back on. It should cure your problem.
Are you speaking about the plastic on the outside at the bottom of the windshield?
 
  #9  
Old 01-30-2011, 07:00 PM
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Yes, under the wipers when they are in the park position, on the passengers side. Turn the wipers on, & shut the key off when they are at their highest point on the windshield. Then remove the plastic cowl over the cabin air filter.
 
  #10  
Old 01-30-2011, 07:49 PM
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Hey guys, I think this is what you're looking for! I had an issue with my '02 where I would get water on the floorboard. I ordered the piece shown here (really cheap from the stealership) and it took about 20 minutes to install. I've had no issues since.

GM part is #15794785 It can be bought at any local gm dealer


http://www.grandprixforums.net/water...-fix-6961.html
 


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