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Old 11-29-2019, 11:02 PM #1
Pgpd324 Pgpd324 is offline
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Water in floorboard “Help”

I have taken the hose coming from the ac and blew through it and it was not obstructed. It is not the heater core I believe because it doesn’t smell or look like antifreeze. Anyone have any ideas on what it could be or how to fix. It’s just on area in the passengers side that is about 8”to 10” around. Haven’t seen any weatherstripping leaking either. I’m stumped.
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Old 11-29-2019, 11:54 PM #2
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I am currently dealing with the exact same issue. Ruled out the AC Drain.


Things to check:

-AC Drain
-Sunroof Drains
-A Pillar holes (holes beneath the weather stripping beside the windshield exterior. Sometimes some holes exist there are are not filled when a windshield is swapped)
-Holes in the actual floor ***(my issue)

I checked the first obvious ones, AC Drain, Sunroof. All drained properly.
I pulled the carpet up and kept looking. The front section of my carpet was wet (where it angles up towards the firewall.) So I figured it was coming from above that for the water to get that high.
As I poured water down the passenger side of my windshield trim (outside) I was able to see a few small trickles of water come into the passenger floor from the front angled section.
I pulled the carpet up a bit further, poured water, then tried to trace the water.

What I found were two small "holes" where water was trickling through.
The first one was halfway up the angled piece and seemed to be either an old seal or a small rusted hole.
The second one was further up that piece and tucked way up behind the piece of black padding fabric that runs up behind the dash. I could barely get my phone camera up to see the spot. Again looked like a possible small rust point/failed seal or leaking bolt.

As the water was poured down the A pillar it ran into the engine bay, then ran down behind the engine. Looking from the wheel well there is a pinch weld (I think) where the rear mud shield attaches. On the inside (engine bay) of that piece where it meets the firewall I could just see the two suspect points. Couldn't get my head in there but my camera could just see them. The water ran right over top of these points and trickled in.

I put some sealant on the inside of the holes and am having my shop take a peek this week to hopefully get a good amount from the outside.

Consider taking a look under the carpet and running some water down the A pillar (outside).




The lower leak:





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Old 11-30-2019, 09:31 AM #3
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From the 3RD gen threads... hope it helps! Dave

SOLVED!!! Water in driver's side floorboard
So, I have read over time where many have posted about water being in the driver's side floor area. There have been a number of possible causes like plugged sunroof drains, plugged drain holes etc.

I found a solution to my "water issue" and it may help. Underneath the carpet on the driver's side floorpan, there is a round, rubber plug about two inches in diameter. Just looking at it, it looks fine. I decided to swap it out with one I pulled from a parts yard and covered it with gorilla tape. Low and behold, the water-in-the-floorpan DISAPPEARED. Carpet is dry as a bone even in this torrential rain we are having. Hope this helps someone out.

Seems like this plug shrinks over time and water gets in. Rather than replacing it, it might work to take it out, clean it and put some silicone caulk around it and then cover it in heavy-duty tape just to make sure it stays put.
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Old 11-30-2019, 10:14 AM #4
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It was sunroof drains for me - put a ton of water in my carpet.
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Old 11-30-2019, 12:10 PM #5
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Quote:
Originally Posted by 08TxRunner View Post
It was sunroof drains for me - put a ton of water in my carpet.
where are the sunroof drains & whats the proper way to make sure they are clear?
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Old 12-01-2019, 01:39 AM #6
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Quote:
Originally Posted by firebirdguy View Post
where are the sunroof drains & whats the proper way to make sure they are clear?
If you open your sunroof and look at the front corners of where the glass goes. There is a small hole on each side. You could blow some compressed air down them if you needed but just pour a little bit of water in and watch for the water draining behind the front tire.
If not water drains out then that could be your issue.
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Old 12-01-2019, 09:56 AM #7
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Some threads that might help direct your troubleshooting:

Passenger side floor wet

Passenger-side carpet wet

passenger floor soaked

Wet floor????

Wet passenger floor? AC drain line?

Wet Carpet Passenger Side Front when it rains
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