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Suburban water leaks

rberardrberard Member Posts: 22
edited March 2014 in GMC
My '92 GMC Suburban is in good shape now. We have
changed the radiator, and made some other repairs
in the last 8 years. It has 165,000 miles now.
One thing that has bothered me for several years is
the mildew smell. When it rains, the carpet in
the cargo area gets wets.
We have changed all of the rubber gasket around
the back doors. (barn doors) The body shop said it
is probably the side panel glass that is leaking
and would have to be re-installed or re-caulked.
They said to test it out more. We can't seem to
determine where the water is coming from. Has
anyone else had this problem?


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    pat455pat455 Member Posts: 603
    If you use the Topic Search feature on the left side of the page for Suburban, you will find topics already in progress on this vehicle in our SUV conference. You might want to ask the folks hanging out in the active topics if they have experienced this.

    Good luck.

    Community Leader/Maintenance & Repair Conference
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    thadleythadley Member Posts: 1
    Make sure your door seals are installed correctly, water can seep around them if there are not mounted correctly. Also check roof rack seals. A side glass leak is not real likely, but pull the interior side panel off and look for a water track and rust. Household silicon will solve this. If all else fails roll back the carpet, pull the interior panels and use a sprinkler on top of the car and trace the leak.I had the same problem and it was a improper installation of the barn door seal.
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    mtrainormtrainor Member Posts: 1
    My 94 Suburban had water accumulating in the rear passenger side of the cargo area which would then migrate down under the carpet in the middle seat area. It took quite a long time to figure out where it was coming from. I replaced the barn door weather stripping, TWICE, the local dealer order the tailgate strippng, not the barn door stripping. plus it spent a day at an auto body shop. it drove them nuts they couldn't find it. The "Water Dr.", local leak wizard, said it was my weather stripping. It wasn't. My wife said its probably leaking in through the roof racks. I had dismissed this due to the fact that my headliner should no signs of water stain or moisture. ...She was RIGHT, ..ouch. The roof rack screws into a channel which follows down the side of the body, where water would collect until it reached one of the holes on the inside wall and spill into the back near the rear air unit.
    Take off your roof rack, silicone around the screw holes, you may want to dab a bit on the screw too, and screw it back on. I hope this works, it did for me. Good luck.
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