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98 DeVille, 97 DeVille d'Elegance
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Discussion Starter #1
Anyone have hint where water getting in at top of C pillar (98 DeVille). Definitely leaking and doesn't appear to be window. Leaks behind interior panel and runs under back seat or into trunk. May be travelling elsewhere when going down the road also. Is the black trim covering body seam removable and is there sealant under it?
 

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Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
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19,849 Posts
Anyone have hint where water getting in at top of C pillar (98 DeVille). Definitely leaking and doesn't appear to be window. Leaks behind interior panel and runs under back seat or into trunk. May be travelling elsewhere when going down the road also. Is the black trim covering body seam removable and is there sealant under it?
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if you have a sunroof -
check the rear drain tube -
 

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98 DeVille, 97 DeVille d'Elegance
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7,345 Posts
Discussion Starter #3
Those were just checked and cleaned couple weeks ago when front drain was kinked but I will check the connections since I have the interior almost out except for headliner anyways, my luck the hose could have a hole or split. Thanks Bass.
 

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Super Moderator
White Diamond '03 DHS (with DTS floor shift)
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87,183 Posts
Only two options are the window or the sun roof drains.
 

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Registered
98 DeVille, 97 DeVille d'Elegance
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7,345 Posts
Discussion Starter #5
Well the seam sealer at door c pillar had a crack in it. Verified wasn't sunroof drains or any part of it first. Took the body weather strip off and the black filler off. Cleaned the adhesive(or whatever it was) off it and scraped seam sealer off the area and resealed with some silicone. Drying over night before testing to verify fixed. This car driving me crazy leaking this and that the last year.
 

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Super Moderator
White Diamond '03 DHS (with DTS floor shift)
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87,183 Posts
I can't even picture the area you're talking about. :hmm: :noidea:
 
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