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Has anyone had this situation?:


I found standing water in the spare tire well recently. After removing the trunk trim and linings, I did a little test. My friend held a garden hose over the deck lid and I took a flashlight to the back seat and watched through the pass-thru hatch. Almost immediately, water started to leak in through the bottom edge of the deck lid.

The rubber weatherstrip is perfect.

Has anyone else with a '98-'04 Seville had this issue and how was it resolved?
 

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Most of the time, the water seeps into the trunk by cascading down the trunk channel and underneath the weather stripping. Try pulling up the weather stripping, if there's some mineral deposits or surface rust, that's your case. Clean the surface and lay a bead of RTV weather stripping glue along the trunk seam. Replace the weather stripping and that should do it.
 

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Sedan de Ville, CTS
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This problem drove Caddy mechanics crazy when those cars were newer. Common problem.

You can also try dusting baby powder on top of rubber seal to identify where there is poor contact with the matching body part when you close the trunk.
 

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White Diamond '03 DHS (with DTS floor shift)
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Has anyone else with a '98-'04 Seville had this issue
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EVERYONE has had that problem. I think it was standard on every Seville.
 
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