Rain getting into cab/floor board

[papa175]

Ok, it's not hurting anything But. I can not figure out how the least bit of rain manages to get into he driver side floor board. I have 95 YJ with a new soft top. Everything else in the vehicle is nice & dry, but let it even drizzle for an hour and I'll have a small puddle in the driver side floor board. Maybe a little in the passenger side but never as much as on my side. There's no evidence of it getting past the soft top/front of the door (day light coming through). The dash is all nice & dry as are the seats, windows, roof interior, etc. How could it be making its way from the vent to the floor, if possible. Or could it be a seal in or around the windshield/firewall? Any ideas? Kind of tired of keeping a beach fowl in the floor. Thx

 

[chunkysoop]

Mine does the same thing. I don't know how, like you said everything else is dry except the floor. It's kinda wierd.

 

[papa175]

Is it more on one side than the other also?

 

[superj]

Mine does too. I just have the drains out and the top off

 

[rock316]

next time it rains look under dash my brother had a 89 yj and his leak was coming from the cowl vent

 

[clydethepirate]

next time it rains look under dash my brother had a 89 yj and his leak was coming from the cowl vent

Thats exactly what I found on mine but I havent done anything to fix it yet.
Do you know what he done to fix his?

 

[rock316]

he put a seal around the vent under the dash

 

[chunkysoop]

next time it rains look under dash my brother had a 89 yj and his leak was coming from the cowl vent

Good info, I will pay attention to that.

 

[TerryMason]

My 85 CJ7 would leak there until I replaced the cowl

For CJ
Crown Automotive Part J5453950 - Cowl Seal by Crown Automotive for Jeep

For YJ
Omix-Ada Part 12302.04 - Cowl Seal by Omix-Ada for Jeep

 

[TerryMason]

Forgot to ask - do you get a puddle of water in the floorboard even when it's parked?

 

[papa175]

Forgot to ask - do you get a puddle of water in the floorboard even when it's parked?

Yes. Especially when it's parked. It doesn't need to rain hard at all. I'll try to check that cowl seal. It makes sense. I bought this 95 after it sat on the West Texas 100* sun, dry windy etc for about 2-3 yrs.

 

[MY95YJ]

Check the drain for the cowl vent. It's under the hood on the right side of the firewall. Mine tends to plug up once or twice a year and it let's water come in through the heating ducts. The best way to clean it is pull the drain tube off and hose it out.

-James

 

[TCJeepdriver]

Had the same problem with water collecting on passenger side floorboard only. Last heavy rain saturated the mats. Brought it to the dealer and replaced the door seal. Old one was deformed at the corner just enough to let in the water. 2011 Sahara Unlimited. Can tell the difference closing the door. Pass. side door needs more force to close just like it did when new. Driver side closes easier meaning seal may be going next.

 

[Ghost Rider]

I had the same and replaced the cowl seal and everything is fine now. I also clean the drain regularly by using the air hose and blowing air through it. Just ont use full pressure.....

 

[papa175]

Ok. I tested the cowl idea by using Gorilla (duct) tape to cover the entire cowl/windshield seal area just before we got a very rare rain here in West Texas. I still was rewarded with about 1/2" of H2O I. The driver side floorboard. Nothing in the passenger side. Don't think I dont appreciate everyone's brain power expenditures. I do. The vent tube is clear. I'm clueless. Maybe I just need to take everything apart to see. Idk!

 

[papa175]

Ok. I tested the cowl idea by using Gorilla (duct) tape to cover the entire cowl/windshield seal area just before we got a very rare rain here in West Texas. I still was rewarded with about 1/2" of H2O I. The driver side floorboard. Nothing in the passenger side. Don't think I dont appreciate everyone's brain power expenditures. I do. The vent tube is clear. I'm clueless. Maybe I just need to take everything apart to see. Idk!

And covered the vent intake to rule out the vent.

 

[Shephard10]

I have the same problem, but the passenger side. I ended up siliconing the upper door seal and that stopped it for a couple months, but it's starting to come back now.

I was wondering if maybe that fresh air duct could have some water leakin out of it?

 

[TCJeepdriver]

My dealer replaced the door rubber seal and it resolved it. Apparently the seals get deformed easily where it presses against a few sections of the sharp plastic trim. Passenger doors are opened less frequently as driver doors which may be why the pass. side is more affected. The less longer a seal is pressed into sharp uneven plastic trim parts the less likely it may deform, even slightly enough to allow a bead of water to seep in. Replacing the seal and resolving the problem supports this. Just a theory here. Keep a close eye on the seal and the wear pattern from the interior trim.

 

[papa175]

Yep. Time to just sit upside down with my head under the dash while driving thru the car wash