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Thread: Water leaking into the car

  1. #1
    DevilleTouringSedan is offline Cadillac Owners Member
    Automobile(s): DTS
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    Unhappy Water leaking into the car

    Hello everyone and thanks for looking into the problem that ive been experiencing with my 2001 Deville DTS.

    Over the past couple weeks ive noticed that water is leaking through the passenger side pillar and running down through the tweeter and sometimes it comes out of the vent. I'm not sure if I should take out the headliner and silicon the roof at this time.

    Any suggestions to what I should do to fix this problem before I take the headliner down?


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  3. #2
    Join Date
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    Re: Water leaking into the car

    How is the weather stripping, is the window sealed? I would look at those two.

  4. #3
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
    Automobile(s): 2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
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    Classic symptoms of clogged sunroof drain outlets. Not sure of the exact location on a Deville, but try doing a search.

  5. #4
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
    Automobile(s): 2003 DHS - two-2002 DHS's, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
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    Re: Water leaking into the car

    if you have a sunroof -
    I agree 100% with MoistCabbage -
    plugged drain tubes -

    the best method to clear them is the thick weed-wacker string -
    GENTLY poked and prodded through the hose till the blockage is cleared -

    some have tried air pressure - and it works great -
    UNLESS you use a little too much pressure -
    and blow the hose off the fitting -

  6. #5
    DevilleTouringSedan is offline Cadillac Owners Member
    Automobile(s): DTS
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    Re: Water leaking into the car

    The weather stripping is fine and and the window is sealed

    Last week I cleared the one drain outlet on the passengers side of the sunroof but couldn't get to the opposite side drain outlet because the sun roof was in the way.

    Already picked up the .080 dia weed wacker line and ran that thru the line for about 2 feet. How do i know if its cleared?

    Do i just pour water down the drain tube and if it doesn't leak its cleared?

  7. #6
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
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    Re: Water leaking into the car

    Pour water down it and look for it dripping beneath the car or run the line down and look for it poking out beneath the car. What goes in the top, must come out the bottom.

  8. #7
    DevilleTouringSedan is offline Cadillac Owners Member
    Automobile(s): DTS
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    Re: Water leaking into the car

    Thanks everyone for the input

    Have a great weekend

  9. #8
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
    Automobile(s): 2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
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    The outlets are what get clogged. There are 4, one at the end if each tube. They resemble pinched hoses. If you pinch them open, sediment should come out, and the water should start flowing.


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