Wet driver's side floor (under mat)
- Thread starter kenm09
- Start date
EHNWI
Member
I don't know how long this has been happening with my 4runner, but I pulled off my weathertech mat the other day and to my surprise, the drivers side carpet is wet and the padding underneath was soaked. Pulled up the carpet enough to get a floor fan under there, but still can't find the actual leak. There is a little bit of rust under there too now. Cleared the sunroof drains. I don't like that they dump into the rockers either.
This thread allowed me to find my water issue.
So after reading this and several other forum threads about water in the driver's side floorboard, I started doing all the suggested things to fix it. I got weedeater cord and snaked the front drain holes from the sunroof. They weren't that bad. Cleared a bunch of accumulated muck out of the area behind the front wheel wells where the water drains from the sunroof. Yuck.
Did a test run and poured some water into the corners where the sunroof drains are. I first poured just a little water and it drained out just fine out where it should. Did this a couple of more times and it was working perfectly. So I got excited and decided to pour a good amount in there. It came out where it was supposed to but then started coming out between the kick panel, between the parking brake and door opening. Damn...
Pulled off the A pillar trim and kick plate trims and found water accumulated there. Tried the water again and this time it poured out from where the headliner meets the A pillar trim but would also drain where it was supposed to. Only choice now was to partially pull the headliner down. I got the front of the headliner pulled, enough that I could see where the drain hose connected to the sunroof drains. At first glance everything looked fine. Then I noticed a bunch of mice droppings up there. I got curious and tugged on the drain line. Reaching up to make sure it was good and connected, I felt the problem . The damn mice had literally chewed the top of the drain hose off. This is why if I poured just a little water it would drain fine. Pour a lot and the water went where it was supposed to but also simply spilled out of the missing part of the hose. There was a nearly 3 inch section chewed along the top.
Now I just have to find the hose and replace it. I hate mice.
So after reading this and several other forum threads about water in the driver's side floorboard, I started doing all the suggested things to fix it. I got weedeater cord and snaked the front drain holes from the sunroof. They weren't that bad. Cleared a bunch of accumulated muck out of the area behind the front wheel wells where the water drains from the sunroof. Yuck.
Did a test run and poured some water into the corners where the sunroof drains are. I first poured just a little water and it drained out just fine out where it should. Did this a couple of more times and it was working perfectly. So I got excited and decided to pour a good amount in there. It came out where it was supposed to but then started coming out between the kick panel, between the parking brake and door opening. Damn...
Pulled off the A pillar trim and kick plate trims and found water accumulated there. Tried the water again and this time it poured out from where the headliner meets the A pillar trim but would also drain where it was supposed to. Only choice now was to partially pull the headliner down. I got the front of the headliner pulled, enough that I could see where the drain hose connected to the sunroof drains. At first glance everything looked fine. Then I noticed a bunch of mice droppings up there. I got curious and tugged on the drain line. Reaching up to make sure it was good and connected, I felt the problem . The damn mice had literally chewed the top of the drain hose off. This is why if I poured just a little water it would drain fine. Pour a lot and the water went where it was supposed to but also simply spilled out of the missing part of the hose. There was a nearly 3 inch section chewed along the top.
Now I just have to find the hose and replace it. I hate mice.
Lostandwandering
New member
So I'm running across the same issue with a drivers wet floor. I cleaned the drains on the sunroof and used a air compressor on the evap drain. I feel the water is co ing down from behind the dash on the center console?! Maybe I'm wrong? Any help is much appreciated.
I am the new owner of a 2003 4Runner and am experiencing the soaked floormat issues. It's happened about 3 or 4 times. I assumed it was the AC line, but it didn't seem clogged, although after running the AC, I do not see any condensate leaking out the bottom. I then ran some lawn trimmer line down all the sunroof lines, and they were clean. I found a leak on the passenger side, right by where the sunroof drain line exits the car. I'm not sure where the leak stems from, but I believe it is near the top of the windshield. What would be the best way to determine where the leak is exactly, and the best method to fix it? I do not have the money to get a replacement windshield. I have attached photos. Thanks Guys
A bicycle brake cable was my approach: thin, bendy, but firm enough to push out any debris, and plenty long. Just work it in from the top at the sunroof drains like you'd work a drain auger to clean out plumbing. Flush it with water, go at it again. Fixed my passenger clog, and did the drivers out of abundance of caution.
