Suspicious cabin leak
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10th Gear
Joined: May 2023
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From: GA
Suspicious cabin leak
Hey! I woke up this morning to my drivers side back seat floormat completely drenched alongside the drivers side half of the headboard. The sunroof sliding cover was also wet, and it was pushed back inside the roof. My sunroof was closed, and i also tested it for leaks with some water cups (idk how effective that is) to no avail. Its a 1993. Are there any better tests i can do to figure out what happened? Thanks for the help guys 
Also, just to note, the other 3 floormats and the passenger side of the roof are completely dry.
Also, just to note, the other 3 floormats and the passenger side of the roof are completely dry.
Last edited by verrofy; Apr 24, 2025 at 02:05 PM.
water intrusion thru the sunroof is common where the drains get clogged over time and water ends up inside. usually running water thru a hose over the sunroof will reveal the leak!
where the glass meets the metal roof is not 100% waterproof so water is meant to drain into the sunroof, but there are channels inside to direct water to the drains.
was your car parked at an angle, like say on the curb of a street? streets have a natural crown on it for water drainage.
in post #6 you can see the drain tubes:
https://www.clublexus.com/forums/ls-...y-removal.html
where the glass meets the metal roof is not 100% waterproof so water is meant to drain into the sunroof, but there are channels inside to direct water to the drains.
was your car parked at an angle, like say on the curb of a street? streets have a natural crown on it for water drainage.
in post #6 you can see the drain tubes:
https://www.clublexus.com/forums/ls-...y-removal.html
Thread Starter
10th Gear
Joined: May 2023
Posts: 10
Likes: 0
From: GA
water intrusion thru the sunroof is common where the drains get clogged over time and water ends up inside. usually running water thru a hose over the sunroof will reveal the leak!
where the glass meets the metal roof is not 100% waterproof so water is meant to drain into the sunroof, but there are channels inside to direct water to the drains.
was your car parked at an angle, like say on the curb of a street? streets have a natural crown on it for water drainage.
in post #6 you can see the drain tubes:
https://www.clublexus.com/forums/ls-...y-removal.html
where the glass meets the metal roof is not 100% waterproof so water is meant to drain into the sunroof, but there are channels inside to direct water to the drains.
was your car parked at an angle, like say on the curb of a street? streets have a natural crown on it for water drainage.
in post #6 you can see the drain tubes:
https://www.clublexus.com/forums/ls-...y-removal.html
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From: California
Thread Starter
10th Gear
Joined: May 2023
Posts: 10
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From: GA
I've read they're in all four corners but good luck getting to the rear holes from the sunroof. You would probably have to send a line up from where the drain lines end at the rear of the car. I just recently had a leak in the front passenger area. Ran a line down the front drain pipes and the issue cleared up. Used this item from amazon: https://www.amazon.com/YHAOEN-Cleani...7?s=automotive
There are no good car covers in stock near me and its going to rain tomorrow, do yall think I could get a tarp and close the doors on it to keep rain from getting in the sunroof?
Thread Starter
10th Gear
Joined: May 2023
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From: GA
Should hold well, thanks for the help yall
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