now the leaky interior - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 09-06-2006, 07:54 PM   #1
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ok, I used the search feature so as to try not to add a duplicate topic and found lots of instances (damn JP3800, looks like you had war with this) but never found an actual cause or solution. All my insulation under my carpet is mush too and anywhere water can collect on driver side has a puddle. In order too keep things that control my fuel pump and PW & PL from shorting out again, I'd like to fix the issue. Any ideas? Suggestions?
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Old 09-06-2006, 08:32 PM   #2
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I'd have someone run a hose over the car and sit inside watching where the water is coming from. It sounds like it could be your door seals/weatherstripping (most likely) or worst case, windshield or back window...depending on exactly where the water is leaking in. The sunroofs usually leak at the drain hoses, but since you have an SE I am guessing that is not your problem.
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Old 09-06-2006, 09:03 PM   #3
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Default Re: now the leaky interior

Quote:
Originally Posted by e8r23i80c
ok, I used the search feature so as to try not to add a duplicate topic and found lots of instances (damn JP3800, looks like you had war with this) but never found an actual cause or solution. All my insulation under my carpet is mush too and anywhere water can collect on driver side has a puddle. In order too keep things that control my fuel pump and PW & PL from shorting out again, I'd like to fix the issue. Any ideas? Suggestions?
My actuall issue turned out to be 3 diffrent things...

1) Under the passenger wiper arm is a seal thats supposed to keep water from entering the HVAC ( AC intake duct ) Duct, it was dripping into the duct and then into the car dead center, the trickles of water would actually go left and right filling the passenger and driver sides with water... We have nasty rains here from time to time... lol

2) I kept finding a small amount of water on the passenger side, and the drivers side was always full.... I found that the door seals had shrunk... I RTV them at the lower points and added a section to take up for the shrinkage... At this point the passenger side leak was cured... The drivers side was still full after a nasty rain...

3) After fighting with this car I called it quits for a while... Then once I had the right frame of mind I tore the car apart... Got under the dash where the parking brake cable had water streaming in.... Found a leak at the top of the dash... After sealing everything on the outside of the car at the area of the dash where I saw the leak, I found the leak to still be present.... I found a bad patch of sealer under the hood hinge... My all went right through the sealer into the car.... Cleaned iy up and sealed it with permatex RTV and the car had been totally dry seince then... Been close to a year so far...

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Old 09-06-2006, 09:06 PM   #4
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ok, nothing coming in the door antwhere i can see, can't see anything coming in the windshield either. No sunroof to leak in. The florr was wet all the way up underneath the pedals and even further up so it looks like it'* coming in from behind the dash
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Old 09-06-2006, 09:22 PM   #5
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Might be from the HVAC stack back there...

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Old 09-06-2006, 09:29 PM   #6
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i hope this doesn't embarrass me......what is RTV? also, what is HVAC? I'm so car literate if ya can't tell, hence I was freak'n extatic when I fixed last problem myself
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Old 09-06-2006, 10:13 PM   #7
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RTV is a type of sealant. HVAC is Heating Ventilation Air Conditioning
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Old 09-06-2006, 10:50 PM   #8
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Quote:
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RTV is a type of sealant. HVAC is Heating Ventilation Air Conditioning
I believe the RTV means "room temperature vulcanizing." It translates to silicon caulk in my book.
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Old 09-08-2006, 08:38 PM   #9
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o.k., does this make ANY sense to anyone, I got ahold of the jackazz that sold me the car and he said that the AC has allready been recharged and that isn't the problem, but that some kind of capacitor or something of that nature actully leaked behind the dash. Does that make any sense for my leaking issues 'cause I checked my door seals, windshield, and looked as best I could under the hood where some things go in and out of car and didn't notice any issues.
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Old 09-08-2006, 10:36 PM   #10
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Quote:
Originally Posted by e8r23i80c
o.k., does this make ANY sense to anyone, I got ahold of the jackazz that sold me the car and he said that the AC has allready been recharged and that isn't the problem, but that some kind of capacitor or something of that nature actully leaked behind the dash. Does that make any sense for my leaking issues 'cause I checked my door seals, windshield, and looked as best I could under the hood where some things go in and out of car and didn't notice any issues.
Maybe the air conditioning evaporator? Does the car drive water from the air conditionr on the pavement under the car?

If the drain tube is clogged check the drain and clean it by using something to push up into it after you find it?
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