97 Buick LeSabre Water Leak

97 Buick LeSabre Water Leak

Posted in the Buick Forum

Terry

Greensboro, NC

#1 Nov 7, 2011
ONLY when it rains, the floor mat on the drivers side gets soaked? It doesnt matter if I park it in either direction, on a hill or whatever, always gets soaked. Where should I start to look 1st?
mike

Lynnwood, WA

#2 Nov 27, 2011
I have the same issue .
lngshoreman

Winona, TX

#3 Dec 24, 2011
This is common problem with these LaSabres. Because the water comes in when it is parked, look for the problem high up on the car, not the bottom or side. On the roof above the doors is a rain gutter groove with trim inside. Pry off the trim and use silicone sealant along the rain gutter to squirt inside the holes the trim fits into. Also put some sealant up front of the gutter where it meets the windshield. You should be able to replace the trim while the sealant is wet. This fix worked for me for a couple of years... now it needs refixing. But it DID WORK for two years.
roger Conner

Nashville, TN

#4 Jan 13, 2012
I had this same problem and the fix was simple. I had a mechanic replace the gasket around the door. Also I think he had to adjust the door. The way I found the leak was to take it to a car wash and watch what happened!
lngshoreman

Longview, TX

#5 Jan 30, 2012
Update:
For the latest repair, I bought a tube of windshield sealant (black, gooey stuff for about $10 at auto parts place). I unscrewed the trim at the top of the doors and filled in the rain gutter as well as I could. I replaced the trim. I also squirted some behind the windshield trim at top of windshield where trim had popped up some. This tube of goo was much messier than I expected and I got a bit on the paint but it wiped up with nail polish remover. After huge rainstorm -- completely dry inside. The cosmetics aren't great if you are picky. But you probably aren't driving a 97 LeSabre if you care too much about the latest style. The fix worked and it cost me less than $20 and an hour or so of my time.
cliff riehl

Santa Rosa, CA

#6 Jan 23, 2017
Terry wrote:
ONLY when it rains, the floor mat on the drivers side gets soaked? It doesnt matter if I park it in either direction, on a hill or whatever, always gets soaked. Where should I start to look 1st?
I am having the same problem. Did you ever figure out what is happening?
cliff riehl

Santa Rosa, CA

#7 Jan 23, 2017
I think I will drill several holes in the floorboard on the drivers side in a small indent of the floorboard on the left side. Since the water accumulates in this indent the holes should allow this water to drain outside

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