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1999 buick regal water leaking on the right side in the truck area? help

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Bummer. Strip the trunk and completely blow dry everything. Completely dry the trunk. During the mopping up (get a good light so you can see..) see if you can tell where the water is running from.

So there are several areas that are common: Look at sunroof drain integrity. look at the taillights where they attach, there is less problems with this detail, these days; And look at the weather stripping. Some designs the water works its way into the seal and gets channeled to the inside.

By the way, this diagnostic step takes a week or so, with rain, etc. so put everything away inside somewhere...Keep the spare.

So, now you are dry, and have fixed or sealed areas that you suspect...The next step is to buy the blue paper towels from Home Depot. These towels show water easily...So. you tape these towels here and there along suspected water paths (path to bottom of the trunk.) Have rain, hose, etc.

Periodic inspections should start to eliminate most of the trunk....I have used tape as a water dam, with the paper towels ahead or behind the tape...Patience is what will direct you to narrow down what is happening. Mine, I was able to eliminate all of the trunk, and followed to find that the weather stripping was discharging water inside. Messy fix, total clean out of old sealer and install new design seal...and problem gone.

In almost all of my waterleaks, I NEVER found it actually leaking when watered with a hose...I used the blue paper towel method to narrow down where the water was entering... Sometimes I would go through several rain storms and driving events with no water entering....
Hope this helps you to get to the bottom of your issue. The answer is never silicone, you need butyl and weatherstrip stuff meant for your car. And as when new, no sealer goobered all around.




Posted on Nov 04, 2010

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  • Master
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The rubber seal is probably bad in the trunk, get it replaced. Do you know exactly where the water is getting in from besides just showing up on the right side? Let me know if you need anything else and what you find.
Benjamin

Posted on Nov 04, 2010

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