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Strange interior leak 700 1989

posted by  racerx509 on  Thu Feb 20 05:47 CST 2003
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last visit: Sun Feb 28 15:06 CST 2010
[RELATED]

Hi all I've been having some other probs with my 89 740t.
There's been a strange leak with the car. My drivers' side rear window for a long time had chewed up plasitc gears. Of course, the window stayed cracked by about an inch, and rain would readily pour in during a storm. I replaced the gear, and the window rolls up like new, but I'm still getting leaks. I cannot seem to find any damp spots in the headliner, or any spots near the glass, yet the floor behind the driver's seat is always damp after a downpour. The rim around the sunroof looks good as well. I have also blown the sunroof drainage lines clean. Any other places I should look? Anyone had similar problems with their 7xx volvo and leakage back there?








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    Strange interior leak 700 1989

    posted by  89745GL on  Thu Feb 20 16:26 CST 2003
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    last visit: Wed Sep 8 17:38 CST 2010
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    I had similar leaks in my '89 745 when I first bought it (used w/ 107k). I tried numerous things but no luck, until I went to a local body shop recommended by Volvo indy mechanics in this area (Portland, OR). They found that my gaskets/sealers between the fenders/doors were shot. They also did a water leak test pretty thoroughly to determine this. It's worth a try.








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      Strange interior leak 700 1989

      posted by  Zee on  Thu Feb 20 20:00 CST 2003
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      last visit: Sat Oct 27 10:07 CST 2012
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      More likely than not, your leak is someplace up front -- on the firewall or the side kick panel next to the driver's left foot.

      A grommet out of place, for example. Or the panel blanking off what used to be the fresh air door on the kick panel is loose.

      It is a good practice (once a year?) to occasionally remove the front seat(s), pull up the carpet and inspect/test for such leaks and any floor rust.

      After you do, begin your leak testing by putting water low on the firewall and one-by-one, working upward to each item (wiring harness, cable, etc.) which passes through the firewall. Then the vent cowling, then the windshield, then sunroof.
      --
      1989 740Ti 1986 240DL 1984 244GL








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    Strange interior leak 700 1989

    posted by  VolvoSteel on  Thu Feb 20 08:40 CST 2003
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    last visit: Sun Mar 23 21:28 CST 2014
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    I had a problem kinda like this once but it happend on my passenger side front door and shorted out my ECU, theres a wire harness which goes from the main body to the door, if the seals on that break the water will drip right in behind all the panaling and of course fall to the floor as that's the lowest spot id check there first, if you dont find it there and you do not see water comming in off the window follow the other post and look for rust spots and or places where the body has a hole.








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    Things to check 700 1989

    posted by  someone claiming to be chuck760turbo on  Thu Feb 20 06:35 CST 2003 [RELATED]

    Sounds like a tricky problem. I can only suggest some things to check with regard to your problem. First check under the carpet for rust holes where you find water. Also check your rocker panels under the doors to make sure they are clear and drain properly. HTH
    chuck760turbo








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      Things to check 700 1989

      posted by  swede4 on  Thu Feb 20 17:25 CST 2003
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      The fresh air intake in front of the windshield has drain hoses on each side that drain into the front part of the rockerpanels. Consequently if the rockerpanels can't drain properly they overflow into the front and rear foot wells. Put water with ahose into the air intake and you should immediately see it drain out of the rockerpanel drain holes . If not, clear the drainholes.







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