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Wildkarde 08-25-2010 07:38 PM

Water on the passenger floor after heavy rain
So I went out on my lunch and discoverd I had a kidy pool....So since I have a hard top and have never had this issue before I am betting there is a drain tube plugged some where...and I am thinking it is under the cowel vent but I wanted to get some advice prior to tearing into it...but I figure if a drain line plugs up water will more than likely run in the fresh air vent and then onto my floor and thats about the only thing i can think of.

Am i headed in the right direction or am I way off base here and is there a more common cause?

Thank for any input

G-Pur 08-25-2010 07:42 PM

Sounds like you're on the right track. It happened to me a year ago, and I pulled the tub's drain plugs and haven't put them back. No problems since with accumulation.

Wildkarde 08-25-2010 09:39 PM

any one else?

InfernoGirl 08-25-2010 10:36 PM

Sounds like the cowl seal thingy... :) There's a good write up somewhere here about it.. If it weren't past my bedtime, and I wasn't sick I'd try to find it. But I just can't do it tonite...

Wildkarde 08-25-2010 10:45 PM


Thanks for the post, hope you feel better in the AM. If a back rub will help and your old man is open minded i will be right over :)

02WranglerTJ 08-25-2010 11:50 PM

i had the same damn problem.......check out my thread. I ended up opening up the cowl area and sticking a drill bit down the middle area and unclogging the water, and since then no more water.

cosmo05 08-26-2010 05:34 AM


Originally Posted by 02WranglerTJ (Post 742732)
i had the same damn problem.......check out my thread. I ended up opening up the cowl area and sticking a drill bit down the middle area and unclogging the water, and since then no more water.

The water is coming in thru your heater box, it's entering on the passenger side under the cowl. Like stated, the drain is plugged and water is flooding into your heater box.
Two small bolts on the firewall behind the valve cover remove the plastic drain from the cowl if you don't want to take the cowl off. I would take the cowl off though, and vacuum out the fresh air intake for the heater box. You may want to take care of cleaning that out. I had the same problem and it washed a lot of debris into the heater box, that rotted my A/C evaporator and caused it to leak. I lost a wiper motor due to water damage. Also, I turned the heater on one day and had smoke pouring out of the vents, I guess the blower resistor started the pine needles and leaves smoldering. When I pulled the heater box out it was filled with junk that washed down there. So a plugged drain cost me a wiper motor, an A/C condenser, a heater core, and two days to put all the stuff in (that is not a job you DO NOT want to do!) and almost set the Jeep on fire. Needless to say I pull the cowl every once in awhile to make sure everything is clean and free to drain.

Wildkarde 08-26-2010 12:01 PM

Thanks for the input guys, good to know I am on the right track...any thing else I need to know...IE do the wipers arms come off like they do on a chevy? Just a little tab that you pop open with a flat head or did jeep put the damn torx heads on the wiper too?:eek:

Wildkarde 08-26-2010 12:53 PM

Any other Idea's
Well I thought I had it nailed, however I just pulled the cowl off and it was as clean as could be in there, dragged a hose over a sprayed it wide open and it drained like a charm, doesn't appear to be any blockage as it didn't back up at all. Now i am wondering if the rain just overwhelmed the drain, it POURED for 3-4 hours straight....

Guess I will just have to wait and see if it happens again or go through the car wash and maybe then I can back track the leak. I hate not knowing what caused it

erickpl 08-26-2010 01:58 PM

Reach up in your passenger floor boards. Just out of sight there is the lip of the heater core. Feel around in there for a spongy gasket. If it is wet, that is where the water is coming in.

To fix this, get your favorite sealant (I used the stuff for reattaching diff covers), and seal the area around the heater core. Removing the battery is the easiest way to do that. While you're there, you can add an elbow tube to help A/C condensation. Not that that is the problem HERE, but may as well.

You can see what I did in the pics below.

A/C drain tube:

Sealed up around heater core:

And if you want to, seal up around the passenger side air intake. The PO had done this in a half-azzed way, so I globbed the crud on.

Then you can remove carpets and line the interior. :)

Wildkarde 08-26-2010 03:19 PM

Thanks for the info Erickpl, pics helped as well. I will take a look at the seals and see if that is the culprit

Atthehop 08-26-2010 04:17 PM

Mine seems to only leak in when I am parked facing up hill some. So now I park facing down hill and no water......

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