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Custom Car Enthusiast
Join Date: Sep 2007
Location: Portland, Oregon
Posts: 1,245
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Water Leak, Wet rear floor pan...T-Top, Drain tube?? Help Please!!
I have a 92 MR2 Turbo T-Tops. I went outside to my car Christmas eve, to do some interior work. Long story short, I put the Drivers front seat forward, and the rear floor pan was SOAKED. No matter how much I tried to dry it, is kept getting more water. I then removed the seat, pulled the drivers side carpet up, and removed it. The rear pan was filled with water, like a mini-pool. It had to use a wet-dry vac and a ton of towels to dry it. Then I dried the carpet, etc. I checked the passenger side too, it was wet (thought not as wet as the drivers side)
Anyways, I'm at a loss as to where the leak is coming from. I had almost the entire interior out, I sent 7-8 hours on it looking. I couldn't see an easy sign as to where the leak was coming from, and only the floor pan was wet. I thought maybe the T-Tops leaked. The T-Tops do collect water vapor in the rain, so I am sure they have a small leak. However, the black out shades are dry as a bone, the seats aren't ever wet, the door panels seem dry, front floor pan is good, etc. Also, no water drips on me when it rains and I'm driving. I can't figure it out. If it was the t-tops, I'd think at least some of these would happen.
I seem to remember reading something about a drain tube or something near the rear quarter windows. I thought I read if the rear window was removed at any point, and put in wrong/the tube didn't get put/was pinched or blocked, etc...that is would dump rain into the rear floor pan, leaving you with a wet floor pan. I have no idea if my rear quarters have been removed or if this ever happened, but I got to thinking...it makes sense. I do think the rear of the car was re-painted at some point, as part of the top, quarter panels, engine lid, etc..seems to have a clearcoat. IDK, but if that was the case the rear window may have been removed (so it's possible).
However, even with the interior apart, I have no idea what I was looking for, and couldn't find the thread on here that talked about it (I searched). Anyone else know anything this?
I don't know. All I could think of was the t-tops or the quarter panel/window dump tube thing.
Anyone have any ideas, or how I could tell if it's the tube or the t-tops? The floor pan was just like a mini-pool in the rear, and I don't want it to get like that again...
Any thoughts, ideas, links, etc...please let me know. I spend my entire Christmas eve from 2:30pm-10:30pm outside under a car tent, pulling the whole interior apart, drying the carpet, t drying cleaning the floor pan, putting it all back in, etc...and I don't want to go through this again...not to mention that much trapped water is bad...After it was all dried, etc...I drove the car to my fiances families house after midnight service. This evening (Christmas Day) I went out to the car to drive back down to Oregon, and the rear floor carpet was damp again (the passenger side was wetter this time, probably due to the parked angle of the car). I drove how in the what started as snow, then rain-snow, then rain...and again...no leaks onto me or noticeably dripping anywhere, so I have no idea where this is coming from.
Any ideas, thoughts, or info...please chime in!! I'd like to solve this so my floor pan stays dry, instead of turning into the local swimming pool again...Thanks!!
*sorry if this doesn't make sense...I am dead tired right now*
Last edited by eckoman_pdx; 12-26-2007 at 06:15 AM.
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