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Old 09-27-2011, 01:44 PM   #1
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Question PASSENGER SIDE LEAK still can't find all the info I need.

So I have a leak inside my Jeep on my passenger side floor board. I'm pretty sure it has to do with the cowl, or cowl drain? Its coming from right above my floormat from under the dash (dripping). I believe something is clogged becuase there is no signs of leaking from any window or door seal. I had a similar problem with my YJ cowl drain but I still cant figure this out on my TJ.

What I need help with is how to unclog the typical problem areas, i.e. Cowl, A/C drain, etc. What to take off as well. Pictures would be awesome! But any help is very much apreciated!

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Old 09-27-2011, 01:46 PM   #2
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It's not antifreeze is it?

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Old 09-27-2011, 02:27 PM   #3
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Old 09-27-2011, 02:37 PM   #4
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No, its water. Thanks though.

My Jeep is Non A/C too. Haha thanks though. Mine only leaks after heavy rain.
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Old 09-27-2011, 02:53 PM   #5
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Mine leaks in a heavy rain also unless the jeep is facing down hill a little. This tells me it's the cowl drain not being able to handle the volume allowing it to back up into the heater box and onto the passenger floor. I personally feel it's a design problem.
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Old 09-27-2011, 03:00 PM   #6
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I have a leak that drips on my left foot in heavy rain. Think this is cowl?
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Old 09-28-2011, 08:12 AM   #7
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Had leak there too. I was getting water around the heater core. Sealed it up with RTV and solved that problem.

If you reach up under the passenger side dash, you'll feel a spongy gasket. If it is wet, that is your likely source. Sealing up the heater core area may help.



This area is behind your battery, so you'll need to remove that to get to it. While it is out, look for any telltale signs of water flow. Just follow it to see where it comes from.

Flopped the Jeep and leak came back but I know something is out of whack. I've replaced the cowl cover with a newer style (98+) and with the rains we had, things stayed dry. I'm thinking if your cowl cover isn't on quite right (mine was out of whack from the flop), water can run down the windshield to it and go up/over the air intake and into the Jeep. But I have not confirmed that yet.

To remove the cowl cover, remove the cowl by unscrewing the screws just below the windshield, removing the wiper blade arms, removing the center screw on the vent, and 2 screws hiding behind the rubber lining. Your fresh air intake may be where it is coming in, so you may want to seal up the intake where the plastic meets the metal of the body.



With the cover off and the intake sealed up, run a hanger down the center drain. You can also make a little hook with it and see if anything is even down there. Once you get the crud out of there flush the remaining bits with water. This will also help tell you if things are still clogging up.

I've also notice a slight crack in the tub on the passenger side right above where it says Wrangler on the side of the Jeep. This may be a source of water for ME, so I may seal that up too if I get more water.

Pilgrim, driver side leaks may be something different. If you have any added wiring (amps, etc) make sure they are looped below the firewall entry point so water doesn't run along them and into the Jeep. By looping it below the entry point, water will go there and not into the Jeep. Also, if you've added any other wiring, be sure to seal up the holes as well as possible.
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Old 09-28-2011, 08:34 AM   #8
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Quote:
Originally Posted by erickpl View Post
Had leak there too. I was getting water around the heater core. Sealed it up with RTV and solved that problem.

If you reach up under the passenger side dash, you'll feel a spongy gasket. If it is wet, that is your likely source. Sealing up the heater core area may help.



This area is behind your battery, so you'll need to remove that to get to it. While it is out, look for any telltale signs of water flow. Just follow it to see where it comes from.

Flopped the Jeep and leak came back but I know something is out of whack. I've replaced the cowl cover with a newer style (98+) and with the rains we had, things stayed dry. I'm thinking if your cowl cover isn't on quite right (mine was out of whack from the flop), water can run down the windshield to it and go up/over the air intake and into the Jeep. But I have not confirmed that yet.

To remove the cowl cover, remove the cowl by unscrewing the screws just below the windshield, removing the wiper blade arms, removing the center screw on the vent, and 2 screws hiding behind the rubber lining. Your fresh air intake may be where it is coming in, so you may want to seal up the intake where the plastic meets the metal of the body.



With the cover off and the intake sealed up, run a hanger down the center drain. You can also make a little hook with it and see if anything is even down there. Once you get the crud out of there flush the remaining bits with water. This will also help tell you if things are still clogging up.

I've also notice a slight crack in the tub on the passenger side right above where it says Wrangler on the side of the Jeep. This may be a source of water for ME, so I may seal that up too if I get more water.

Pilgrim, driver side leaks may be something different. If you have any added wiring (amps, etc) make sure they are looped below the firewall entry point so water doesn't run along them and into the Jeep. By looping it below the entry point, water will go there and not into the Jeep. Also, if you've added any other wiring, be sure to seal up the holes as well as possible.
THANK YOU! That helps A LOT. I'll be getting into all of this this weekend. Hopefuly I can track down my problem.
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Old 09-28-2011, 08:56 AM   #9
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Thanks, gang... I have the same problem with my 2000 Sport. I have rubber liners on the floor, and the passenger side will collect about a pint of water in 4-5 hours of rain, plus whatever soakes into the mats.

There's a drip on the driver's side, too, but that's easy - the water tracks in under the front panel of the hardtop and drips off a point about 6" below the top edge, right onto my left knee. Simple fix is to close the door with a small rag in the seam, none of it inside the cab. The water just follows the line of least resistance.
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Old 09-28-2011, 09:32 AM   #10
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Its the drain tube for the AC that exits the firewall into your engine bay. get a rubber elbow from the hardware store clamp it on there and your good. Its from running your ac and at highway speed the airflow forces water exhaust from ac back up tube into your cabin. try this inexpensive fix, before you start chasing AC ghost's

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