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Old 04-01-2014, 11:38 AM   #1
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2 inches of water on the floor

I just purchased an 05 Sport with a hard top. When I bought it there was some water on the drivers side floor and the passenger behind the drivers floor. It rained the other day and it was still dry. Yesterday we had some frozen rain and I found about 2 inches of water in the front passenger and half inch behind. Are ther any trouble spots that I should be aware of? Seing that the water comes in on one side at a time kind of tells me that it may be the way the vehicle is tilted. Any good ideas? I will be going out there with a hose as soon as the weather permits.

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Old 04-01-2014, 11:42 AM   #2
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Your cowl drain can be clogged and it can enter through the floor vents. You can put someone in side and hose the top down to check for leaks in it the seams at the tub and the doors etc.

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Old 04-01-2014, 11:49 AM   #3
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what is the cowl drain and where would it be?
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Old 04-01-2014, 12:40 PM   #4
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The piece that is directly outside your windshield with the vent louvers in it. Open the hood, and there is a screw along the edge on each side behind the weather stripping, pull those out. Close the hood and pull off the wiper arms, then remove the 4 screws along the top and the one in the louver.

After that you can remove the cowl cover. In the very center underneath is a sheetmetal tunnel that runs straight down...that is the cowl drain. There is a rubber flapper on the bottom that you cannot see, but they get plugged up with leaves and debris and cause the area to fill up with rain/car wash water, then spill over and come through your fresh air vents. Take something long and flat, like a yard stick and stick it sown through the flapper on the bottom (you have to feel for it) then turn it sideways to open it up. Use a hose with a sprayer on it and flush it out real good...you should see all kinds of junk coming out from under your Jeep. Once you get it clean, put it back together...Easy peezy. Here's pics of where the screws are.
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Old 04-01-2014, 01:33 PM   #5
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Quote:
Originally Posted by Majnoon View Post
Your cowl drain can be clogged and it can enter through the floor vents. You can put someone in side and hose the top down to check for leaks in it the seams at the tub and the doors etc.
I had that problem with my brothers jeep. usually from sitting under trees and just getting a lot of crap i the cowling will cause water to find its way in. your best bet is to open up the cowling (not a fun job) and clean it out. My brother put a bushwhacker cowl scoop on it to prevent anything from getting in there and so far, there are no problems.
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Old 04-02-2014, 09:22 AM   #6
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The cowl drains are clear. I had it appart a couple of weeks ago and blew out the drains with air. I poured water into the cowl and it came straight to the ground flowing really fast. I do think that I may have found the culprid that causes the leak. The trim on the windshield pillers have some insulation that seals the trim from the windshield frame. It looks like it may have come from the factory this way, but the insulation did not cover the whole length of the trim. I removed the old insulation and installed a new one that does cover the whole length. Now I still need to do the water test again. Thanks for the help.
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Old 04-02-2014, 02:50 PM   #7
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Which trim are you talking about? I have 2 leaks in the front of my LJ, one is pretty clearly the seal on the driver's side door but I still haven't been able to figure out where water is leaking into and dripping out from the blower motor into the passenger floor. Like you, when I took my cowl apart it was totally clear and water drained out fine.
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Old 04-02-2014, 07:49 PM   #8
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Same here! Water in passenger floor after rain. Removed cowl (easy - 7 screws) cleaned out very little debris, poured water in and it all drained proper with no trace inside. I've heard about removing the a/c inlet box and applying a sealant where the foam is, but since the drain works so good, I don't think that is the issue. I am back to addressing the rubber door gaskets... Any other ideas???
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Old 04-02-2014, 08:11 PM   #9
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I found my leak that drive me nuts for a while. Under the cowl cover is the air intake hood, fastened down with (I think) 4 screws. There is a foam seal attached to the underside of that hood that deteriorated, and obvious signs of water in there. Any water coming off of the windshield into where the cowl meets the fender goes into this area. I cleaned off both surfaces, ran a 3/8" bead of black silicone sealant, and fastened the hood back down. No more wet floor.
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Old 04-02-2014, 08:14 PM   #10
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Quote:
Originally Posted by BuboJeeper View Post
Same here! Water in passenger floor after rain. Removed cowl (easy - 7 screws) cleaned out very little debris, poured water in and it all drained proper with no trace inside. I've heard about removing the a/c inlet box and applying a sealant where the foam is, but since the drain works so good, I don't think that is the issue. I am back to addressing the rubber door gaskets... Any other ideas???
Problem on mine was, the water was never getting to the drain. It was draining right into the air intake. Pour water into the the cowl from the far passenger side, like it was rolling off the windshield.
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Old 04-03-2014, 07:58 AM   #11
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Thanks for the tip! I was wondering why my floor is wet & waiting for warmer weather to look into the problem. Now I have a clear idea were to start.
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Old 04-03-2014, 01:31 PM   #12
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Quote:
Originally Posted by Ryan Angela View Post
I found my leak that drive me nuts for a while. Under the cowl cover is the air intake hood, fastened down with (I think) 4 screws. There is a foam seal attached to the underside of that hood that deteriorated, and obvious signs of water in there. Any water coming off of the windshield into where the cowl meets the fender goes into this area. I cleaned off both surfaces, ran a 3/8" bead of black silicone sealant, and fastened the hood back down. No more wet floor.
Now that's a very interesting idea! Perhaps I just didn't see an immediate way to do that when I had mine off, or I was focused on looking for debris or some kind of other hole. I'll have to try that soon.
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Old 04-03-2014, 01:46 PM   #13
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Oh, and another thing! I believe that leak was a direct cause of my blower motor resistor going out prematurely. First one I replaced was encrusted in rust, second one only lasted a few months and was dripping when I took it out. Makes sense in my head anyway, water goes in while blower is on and gets pulled all over from the air flow.

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