Passenger floor is always wet - Page 2 - Lexus IS Forum
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post #16 of 24 (permalink) Old 06-02-2011, 01:28 PM
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deffinatly clear fluid and no smell i reconnected the rear floor vent where it connects upfront hopefully that works
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post #17 of 24 (permalink) Old 07-05-2012, 10:18 AM
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I have a friend with an IS he was haveing issues with wet carpet on passenger floor, we bypassed the heater core and still have moisture. He checked the drain hose and it came loose. I have not looked under the dash yet. How involved is it to get this back together and cleaned out?

Last edited by aj44mc; 07-05-2012 at 10:21 AM. Reason: mis spell
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post #18 of 24 (permalink) Old 07-05-2012, 11:55 AM
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Quote:
Originally Posted by aj44mc View Post
I have a friend with an IS he was haveing issues with wet carpet on passenger floor, we bypassed the heater core and still have moisture. He checked the drain hose and it came loose. I have not looked under the dash yet. How involved is it to get this back together and cleaned out?
It's not too difficult, just alittle cramped in there. Look behind the glove box and simply reconnect the tubing. Here's what the drain line looks like.


This thread has a pdf in Bartkat's post to show how it's layed out.
https://my.is/forums/f87/water-sound-308131/

'02 IS300 MSM LSD
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post #19 of 24 (permalink) Old 08-30-2012, 07:57 PM
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Problem Fixed!

I just had the same problem. The water was actually dripping directly from the condenser because the entire housing around it got filled with water since the hose (black hose circled in the picture in the previous post) was clogged. It would drip around the cooling fan where the air filter is housed. It took some digging online to find out that that black hose was clogged.

You can find the area circled in red behind the floor mat and carpet. Just pull it down and away from the firewall on the passenger side, upper left behind the glove box.

How I cleared the hose was to use a compressed air can, disconnect the black hose from the translucent hose, and spray the compressed air into the hose. I stuck the tube from the compressed air can into the hose and then sealed the black hose with my thumb. Worked well enough. Some other posts suggest against this method since it might damage the hose but i think a compressed air can might be ok. Also, my thumb was an imperfect seal so if it is really clogged, my thumb would not be able to keep a tight seal on it.

Another method would be to jam a thinner rubber hose down the black hose to see if you can clear the clog. I would not use a wire or anything sharp since that can punch a small hole through the tube.

My carpet was fairly wet with water. Luckily no mold developed since i fixed it a few days after it happened. I slowly dried the carpet with paper towels (really wish i had a sham-wow at that point) and then left it for a day in the sun. Fairly easy fix. Drying the carpet took longer than to find the black hose and clear it out.

It took some driving around with the AC on and parking afterwards to see the water flow through the hose and onto the ground.
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post #20 of 24 (permalink) Old 08-30-2012, 08:02 PM
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Thanks for the great update. I'm sure it will help others

'02 IS300 MSM LSD
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post #21 of 24 (permalink) Old 08-30-2012, 08:10 PM
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I had the same problem as well. I would bet money on the problem being the drain hose.

Thanks to Jason n evildoughboi
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post #22 of 24 (permalink) Old 09-01-2013, 12:26 AM
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I had this same problem. It turns out the drain hose from the ac evaporator was completely missing. I suspect that whoever installed the sound system used the hole in the fire wall and removed the hose. I had to go to a salvage yard to find one for $10. After I put it on I removed the seats and carpet to get to the foam padding on the floor board. I let it dry for 1-2 days and reinstalled everything.
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post #23 of 24 (permalink) Old 09-02-2013, 09:54 AM
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I had the same problem here. The hose was actually disconnected under the glove box/passenger foot well and all of th condesation was going straight into the floor. Fun stuff.

2002 IS300 Auto
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post #24 of 24 (permalink) Old 05-15-2019, 06:14 PM
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If its the AC water...
i had the same problem, there is a rubber piece right above the transmission shaft and it very hard to clean it. BUT, the Lexus tech just pulling that whole rubber piece out and it solved my problem. Also, this solution was free because they didn't have to do much.

i am here looking for sunroof water issue.
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