Water in the left rear floorboard

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, Olds 98 91-96, Buick Lesabres and Park Avenue 91-96. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
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fmacnak
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Water in the left rear floorboard

Post by fmacnak »

Hi all, so after it rains I get a wet carpet on the left rear side of the vehicle. Any thoughts on how that occurs? I don't think my door seals are leaking. I'm wondering if it's the sunroof drain is plugged or loose. Any thoughts?
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95 SSEI (modified-cammed, ported & portmatched, custom Positraction trans)
99 C5 (too original-can't bear to make it a project)
09 Escalade (to tow my projects around)
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gmman
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Re: Water in the left rear floorboard

Post by gmman »

96 SE, same symptom, checked door seals, etc. (this car not equipped with sunroof). solution, caulked around fresh air intake (located between wipers). also should clean any trash in wiper well.
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J Wikoff
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Re: Water in the left rear floorboard

Post by J Wikoff »

It could be the sunroof drain. Pop the rear seat bottom out and see if it's wet under that side and look for evidence of water trails leading up near the door.
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Pontiac1
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Re: Water in the left rear floorboard

Post by Pontiac1 »

If it is the sunroof drain,use some good glue to adhere it when you put it back on or it will come off again in the future,happened to me.
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SSEBonne4evr
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Re: Water in the left rear floorboard

Post by SSEBonne4evr »

Wiper intake as stated was my left leak.
Also, Re install the door seals filling in the bottom
with a piece from the yard.
Could be as much as 2" shorter at the bottom when you do this.

http://www.pontiacbonnevilleclub.com/fo ... 39736.html
90 SSE Bonneville Sold but not forgotten.
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Baconboy95
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Re: Water in the left rear floorboard

Post by Baconboy95 »

Be sure to check for shrinking door weatherstripping as well.
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MKMike
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Re: Water in the left rear floorboard

Post by MKMike »

Pontiac1 wrote:If it is the sunroof drain,use some good glue to adhere it when you put it back on or it will come off again in the future,happened to me.
I took no chances on mine; RTV and zipties to secure the tubes to each other.
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haro1225
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Re: Water in the left rear floorboard

Post by haro1225 »

Hole in the wheel well?
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96 SSEi
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Re: Water in the left rear floorboard

Post by 96 SSEi »

hi, I had this in my 96 SSEi and it was a small oval piece with little tabs in the floor
look under the car and you will see it - caulk it after cleaning and it will stop the water ingress
poverty forces one to do unorthodox things

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past rides:
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