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Mercury Grand Marquis Water Leaks

42 messages,  Last post on Jul 21, 2009 at 8:12 AM

You are in the Ford Crown Victoria/Mercury Grand Marquis Forum. Your Hosts are pat & karens

What is this discussion about? Mercury Grand Marquis, Auto Body, Auto Repair, Sedan


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#41 of 42
Re: Reply to Merc water leak [cougar6999] by felhet
Apr 08, 2009 (2:27 pm)
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Replying to: cougar6999 (Jan 12, 2009 5:08 pm)

I never had a problem with my 96 until I moved to Texas and experienced the torrential rains there.
 
I read the posts on this site and decided to investigate myself. I used to have PUDDLES on both driver and passenger sides in the front and back.
 
I ended up removing the plastic cowl cover under the windshield and then the wiper tray which holds the wiper motor and the wiper mechanism. You have to take off the wiper arms themselves to do this.
 
The wiper tray has channels for water to run and in the middle there is a plastic/rubber flap for the water to collect and drip down a "chute" down the middle of the engine bay and firewall. My wiper tray was COMPLETELY clogged with dirt and leaves at the mouth of the rubber flap. I vacuumed all the dirt out and cleaned all the little crevices and replaced the wiper tray.
 
I also siliconed the heck out of the fresh air intake on the passenger side since the gasket shrunk like everyone else. And I siliconed the heck out of the cables going through the driver's side firewall.
 
So far I have had NO problems. I did all this 8 months ago and we have had some hard rains since then.
 
Hope this information helps. Let me know if there are any questions.
#42 of 42
2003 Mercury Grand Marquis water leak by cathiew
Jul 21, 2009 (8:12 am)
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I have a water leak - passenger side - not coming from windshield, no debris clogging cowl; not coming from heater fan motor; dealer says leak is a common problem most likely coming from windshield wiper motor cowl and can repair for $400 -$500. Any ideas where else it could be coming from?

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