Water leak or something...

[kaffeene]

This has been an ongoing problem. Everytime I lift up my carpet in the front driver & passenger side there is water rusting away at my floor pan.

Although I can put a coating to stop the rust I would like figure out where the water is coming from. There is no holes and the rubber plug is tightly in place. And I always dry up the water but it keeps on coming.

Does anyone else have this problem? And is there a common place from which this water is coming from?

Thanks

[traildust]

This can be several things. The easy one first. Under the hood on the firewall on the passenger side. You will see a rubber tube hanging down. Take this off and cut the end off and put it back on. The second thing is more involved. Check you windshield seal. Look at the seal that is between the winshield frame and the body. See if you can see if any water has been getting thru these two seals the windshield seal and the crowl seal. I had to replace my crowl seal. This involved lowering the windshield and when replacing the seal I siliconed between the seal and the frame for the windshield and the seal and were is rests on the body. I also had to have my windshield resealed. The factory one on my 1993 was a poor design. The after market one sold by glass shops in much better and fit better with a wider profile on the outside of the windshield. Just some thing to concider. If it is working do a search on the subject there are alot of good threads on this subject.

[kaffeene]

What did u mean about the rubber tube? I know what you are talking about, I have seen this.. What does it do?

[flashfoto]

Your fresh air vent on the cowel has a drain tube in it. Might want to check that, too. If it's plugged, water will come into the veh. behind the dash.

Flash

[traildust]

Flash is right that is what I am talking about. The tube is the drain for the fresh air box this gets plugged easily. The best fix is to cut the pinched end off that way it is opened enough for stuff to drop through it.

[acejeeper]

-=- originally posted by traildust -=-
....... The best fix is to cut the pinched end off that way it is opened enough for stuff to drop through it.

Or install a small piece of black plastic window screen under the fresh air intake grill ( on the howl in front of your windshield) held in place by the screws that secure the grill. Keeps all the junk out and still lets air & water pass. Black screen so you cannot see it.

[kaffeene]

Ok so I will check the air vent on the hood.
Just take it apart and check it?

[flashfoto]

"Just take it apart and check it?"

You could pour some water thru the grill & see if it is going thru. If not, just pull the grill & blow or ream our the drain tube.

Easy....

[kaffeene]

OK...but,if thats not it,
I notiiced some water slowly dripping on the passenger side from under the dash awhile back.

[traildust]

This can be several things. The easy one first. Under the hood on the firewall on the passenger side. You will see a rubber tube hanging down. Take this off and cut the end off and put it back on. The second thing is more involved. Check you windshield seal. Look at the seal that is between the winshield frame and the body. See if you can see if any water has been getting thru these two seals the windshield seal and the crowl seal. I had to replace my crowl seal. This involved lowering the windshield and when replacing the seal I siliconed between the seal and the frame for the windshield and the seal and were is rests on the body. I also had to have my windshield resealed. The factory one on my 1993 was a poor design. The after market one sold by glass shops in much better and fit better with a wider profile on the outside of the windshield. Just some thing to concider. If it is working do a search on the subject there are alot of good threads on this subject.

[kaffeene]

Ok I haven't driven the Jeep in 2 days and it rained yesterday, I lifted up the floor mat today and there was puddle.
I know now that its not necessarily when the vehicle is moving that it is collecting this water.

So I checked the air vent and drain and they were both very clean. Just about all of the water was on the driver side so I can basically rule out the vent leak cause the air vent goes towards the passenger side.

Ok so I used urethane seal around the speedo cable hole in the firewall and another hole down lower (which seemed to have no purpose until I ran some ground wires through it.)

Only thing left that I can think of is the rubber seal between the windsheild frame and body. I was thinking of some silicone and just lifting the flap of rubber up on the ouside of the windsheild and shooting some there and then pressing it back.

[Jeep225]

It appears that I have the same problem with my 95. But only on the drivers side. The carpet above the mat(under the dash) is dry. So I figure it can't be the windshield seal leaking down the dash.

Would the rubber tube on the passenger side also be causing water under the mat on the drivers side?

Just thought about something....there is some water on top of the drivers side mat. So could it be a combo of windshield sealer leaking and something under the Jeep?

[kaffeene]

I am pretty sure it has nothing to do with the air vent and the hose that drains the vent because I got water on the driver side even when the vehicle was sitting for a couple days. If I was getting water there when it was parked then all Jeeps with that style vent would get water in.

It can't be the through the drain plug because I wasn't moving to splash water up in there.

Possibly a hole in the firewall but yet again much harder to get water in there when its not splashing up all over.

So last would be the windsheild seal under the windsheild frame.

Where can I get a new one of these?

[White 92 YJ]

I am watching this post with interest because my Jeep does the same thing. I get water puddles on top of the driver's side mat.

[kaffeene]

yup thats where I get em'

HMMMMM .. I will have to sit in there with a bright light in a heavy downpour to see where this is coming from.

If anyone knows where this obviously common problem is coming from PLEASE say so.

[Jeep225]

-=- originally posted by Jeep225 -=-
It appears that I have the same problem with my 95. But only on the drivers side. The carpet above the mat(under the dash) is dry. So I figure it can't be the windshield seal leaking down the dash.

Would the rubber tube on the passenger side also be causing water under the mat on the drivers side?

Just thought about something....there is some water on top of the drivers side mat. So could it be a combo of windshield sealer leaking and something under the Jeep?

Just had another thought. If it was dripping down the dash as the top of my mat has some water. Then why isn't my pants getting wet as my legs are obviously under the dash?

Unfort, I'm not sure if it's leaking while moving or standing still. Guess I'll have to check it before I pull away, after it dries up.

[traildust]

Guys sorry to be PITA but I had the very same water leaking problems you are having and I did the following with this I have no more water leaks.

This can be several things. The easy one first. Under the hood on the firewall on the passenger side. You will see a rubber tube hanging down. Take this off and cut the end off and put it back on. The second thing is more involved. Check you windshield seal. Look at the seal that is between the winshield frame and the body. See if you can see if any water has been getting thru these two seals the windshield seal and the crowl seal. I had to replace my crowl seal. This involved lowering the windshield and when replacing the seal I siliconed between the seal and the frame for the windshield and the seal and were is rests on the body. I also had to have my windshield resealed. The factory one on my 1993 was a poor design. The after market one sold by glass shops in much better and fit better with a wider profile on the outside of the windshield. Just some thing to concider. If it is working do a search on the subject there are alot of good threads on this subject.

[kaffeene]

Yah .. my rubber tube hanging down from the firewall that drains the vent is not clogged and I poured water through it at a moderate rate and it went right through with no problems, even with the slightly pinched end of the tube.

[traildust]

Keep reading there is more to it then the tube for the drain. Or not just trying to help. I had a submarine and I know it's not any fun dealing with water in the tub.

[kaffeene]

Yah I know .. I basically checked all that stuff...

It's ok I believe the search is over.
There is a small hole in the firewall right above the hump in the middle of the interior, the hole favors the driverside. I'm not sure what the purpose of this hole was but it has a rubber hose about a foot long going through it.
Both ends of this hose weren't going to anything. Awhile back I ran wires through it.

If anyone knows the purpose of this tube let me know.

So it seems water has been getting through this hole and since the hole favors the driver side it was dripping down onto my mats and soaking underneath them. I know this because when I lifted that entire portion of my carpet from the driverside to slightly past the shifter I could see a dirt residue trail from the hole down the hump and onto the floor.

This was especially bad because the trail seemed to come through the hole and along the black plate near the shifter before leading down to the floor pan.
I am thinking some of this water has worked its way into the trans. which means I am changing my trans. oil this weekend.

I just got my trans. fixed already because of water that apparently got in and destoryed some syncros. I don't need that problem again.


My solution is to get a gromet or just use black urethane or both on the hole and possibly silicone along the top portion of the shifter plate to prevent future problems.

[traildust]

Sounds like you have a good plan. Good luck.

[kaffeene]

Does anyone know what the rubber hose going through that hole was for?

When I found it, it was not connected to anything on either side.

[wightman]

This may or may not be correct because I don't know exactly what you're talking about. I have about a 1/2" rubber hose that's about 6" in lengh (just off the top of my head) that connects to the interior of the fire wall right above the tranny hump. The other end connects to the floor vents...I believe. I'll check when I get in the jeep today to go to work.

[wightman]

yeah, that was it. it connects on the back side fo the driver side floor vent.

[kaffeene]

What exactly does it do? Cause it was always disconnected on both ends when I found it.

I just ran wires through it instead.

edit: Ok I found where the hose should be connected to on the interior.
Yah it was the hose you guys were talking about.
If this hose is disconnected will there be a lot of moisture or water leak??
It looks like it connects to the back of the air conditioning vent housing.


ANYONE?? I'm trying to figure out the importance of this hose.

[rdelling]

I found two places where my jeep was leaking. They are both under the cowl in front of the windshield. The first is around the water drain. This is a plastic drain butted up to the sheet metal. The water is supposed to drain down it. The problem was there was no seal to keep water from finding it's way between the sheet metal and the plastic drain. The water would seep between the two and drain into my cab.
.
The second place is the fresh air intake. The fresh air intake box is screwed to the sheet metal. Beneath it is the actual air intake that comes up through the sheet metal. There was a 1/16 to 1/4 inch gap between the air intake and the sheet metal. When water builds up in the cowl, the water was making its way under the fresh air intake cover and falling down into the passenger floorboard. I just used a boatload of silicone and sealed around both these areas and any thing else that looked like it may be letting water in. I tested out my silicon job by using the garden hose and running it directly into the cowl vent. "NO MORE LEAKS."

[kaffeene]

Cool..thanks
I'm pretty sure I fixed the leak problem.. for now.. but I will try the silicone just to be sure.

And if anyone knows what the importance of the hose connected to the back of the vents is let me know.

[azyj]

-=- originally posted by kaffeene -=-
There is a small hole in the firewall right above the hump in the middle of the interior, the hole favors the driverside. I'm not sure what the purpose of this hole was but it has a rubber hose about a foot long going through it.
Both ends of this hose weren't going to anything. Awhile back I ran wires through it.

If anyone knows the purpose of this tube let me know.


That sounds like the drain hole for the A/C condensor housing. I don't know if all YJ's have them or just the ones that had A/C installed. But, if you have A/C, there will be a rubber hose that attaches to the bottom of the condensor housing and extends out through that hole. Any condensation that forms inside the condensor housing will drain out underneath the Jeep.

I'm cursious to hear if that truly is the source of your leak. Please let us know.

-Roger

[White 92 YJ]

I found my leak as well. It is the rubber/foam seal that goes in between the hinge of the front windshield where it folds down. I think this is the cowl? A new seal is $109 through the dealer! I couldn't believe it.

[kaffeene]

No, I wasnt saying that the A/C drain hose was the source of the leak, I was just wondering about how much water or condensation would come from this hose when the A/C is operating.
Cause I am currently using the hole in the firewall to run 2 wires instead of the hose. The hose wasn't connected when I ran the wires through the hole so I didn't know what it was for. But now I do, so I just put a plastic bag on the end of the hose to collect any moisture.

The source of the leak was the firewall hole where the hose ran through.
SOO I put a gromet in there and silicone. Now... no leak.... I think.

[Jeep225]

-=- originally posted by White 92 YJ -=-
I found my leak as well. It is the rubber/foam seal that goes in between the hinge of the front windshield where it folds down. I think this is the cowl? A new seal is $109 through the dealer! I couldn't believe it.

I threw a bead of chalk between the rubber seal and the windshield. Lets see what happens now.

[White 92 YJ]

-=- originally posted by Jeep225 -=-
I threw a bead of chalk between the rubber seal and the windshield. Lets see what happens now.

My seal seems to be made of foam. It is totally saturated and is basically working like a wick, taking the water from outside and bringing it in. Looking at the seal, I don't know why I can't go to home depot and get some weatherstriping of the same size (it is basically 56 inches x 3 inches in size), cut it to shape and glue it in. I will let you know how it works.

Update: I went to home depot and they have weatherstripping that is made to seal the gap between a pickup bed and a camper shell. Sounds perfect to replace the cowl seal. I bought it for $7 and layered it in place of the cowl seal that was rotted on my jeep. It looks like a tight seal. I will leave it in the rain tomorrow and find out if it worked.

[azyj]

-=- originally posted by kaffeene -=-
No, I wasnt saying that the A/C drain hose was the source of the leak, I was just wondering about how much water or condensation would come from this hose when the A/C is operating.

That depends on the humidity. Here in Phoenix during the summer monsoon season when it's really humid (for us), I can park my Jeep after running the A/C and end up with a rather large puddle on the ground under my Jeep.

-Roger

[traildust]

Check you windshield seal. Look at the seal that is between the winshield frame and the body. See if you can see if any water has been getting thru these two seals the windshield seal and the crowl seal. I had to replace my crowl seal. This involved lowering the windshield and when replacing the seal I siliconed between the seal and the frame for the windshield and the seal and were is rests on the body.