Water leaking into cab from under dash

It rained hard last night. My truck is now leaking from under the dash onto the passenger floor... Every time I take a left turn water pours out onto the floor. It's collecting somewhere up behind the dash. I looked all around the hood and inside the engine compartment on that side and everything looks snug. If the air conditioner is running or even just the fan it sounds like water is being poured onto a hot iron, but I don't see any steam.

 

Its probably a plugged ac drain, or leaky windsheild. Most likely the ac drain, though.

 

I have a 2008 Tacoma and it has been leaking onto the passenger side floor too, not sure where it's coming from, but it mostly seems to happen when it is raining. Does this happen to anyone else's tacomas? I do have a crack in the windshield but the dash is never wet, just the underside of the glove box and the floor and mat. thanks

 

X2

 

x3

 

The answer to my leaking was a plugged AC drain. I opened the hood, and on the passenger side saw the drain coming out of the cab. I pulled off the curved drain tube and inserted a zip tie (square end first) and pulled it out with a bunch of gunk on it. I did that a few times and I haven't had a problem since. Thank you everyone!

 

Glad it was something cheap and easy!

 

Just adding my water in side the truck experience in case it helps someone:

My (previous) 04 Xtra cab accumulated water in the front passenger floorboard and the rear passenger floor under the jump seats.

Turns out it was the plastic behind the door panel that is supposed to keep water from running down the outside of the window glass, into the bottom of the door and into the truck.
It was coming thru a small area where the plastic had come loose from the inner door skin and running over the door sill into the cab.

Here is my original write up - just to keep it alive.

http://www.tacomaworld.com/forum/1st-gen-tacomas/26894-water-leak.html

Thx
Jon

 

I got the same leak under my dash passenger side... having dome difficulty removing a/c drain pipe... any tips? Thanks.

 

I have the same leak under the dash on the passenger side. I did locate the a/c drain pipe but I'm having difficulty removing it.... any tips? Thanks

 

After some thorough testing, I found my leak was coming in from the very upper right hand corner where the fire wall, side kick panel, and fender wheel all come together. Hard to get your finger up in this area, but it was dripping straight down onto a piece of rubber against the floor under the dash, then onto the carpet and pooling on the floor. This was on the passenger side. I narrowed down the area by using a spray bottle and only spraying small areas. When I sprayed the bottom corner of the windshield and the very end of the top cowl area, I got the leak inside. So I knew the general area of the leak. I had my local MrT remove the fender. They sprayed soapy water all around the outside on top of the fender well, then blew air from inside up in the corner. Immediately had bubbles form at the side cowl where it overlaps the fender well. The TSB BO026-00 Revised has a diagram where this seam is. The diagram isn't the best pic, but once the fender is off, it makes more sense. There was some sealant on this this seam, but had apparently broken loose or deteriorated. They resealed this seam and tried the air again. No bubbles. I only wish I had taken my camera to post some pics.

 

Is this an on going problem with the 2nd gen tacomas? I have only owned my 2011 for four months. Havened had much rain here in Az. I have not noticed this. Dont know if its somthing that I need to worry about .

 

anyone with 13 or newer have this problem? I'm experiencing the same thing and its caused my dash lights to blink while the left turn signal is on and also the lights on dash dim while i have the brake engaged. as soon as i release the brake or turn the left blinker off everything returns to normal.

 

I just noticed this as well on my 2013 after I went through the car wash. I live in northern colorado so we don't see much rain but need to sort this out before the snow flies. Should be noted that I do have ditch lights mounted using Rago Fab mounts. I did have to trim the cowl under the windshield wipers. Upon inspection I noticed there is a hole in the steel under the cowl about the size of a nickel. Could this be my issue? This is a hole that appears to be from the factory. Any insight would be appreciated. I am going to give the AC drain a try here soon. Thanks!

 

Super easy fix! 2003 taco was leaking water on both passenger and driver side with sizzling noise when turning either left or right with AC running. Pulled the metal drain tube out of he AC drain rubber grommet gizmo and water flooded out ... blew the little tube out and replaced it. Thank you for all the good information.

 

I think my leak is the pinch weld problem, which is a little more involved.

 

what was the size of the tube that you replaced? I am missing that exit tube altogether and i am struggling to find the dimensions for it.

 

Thinking my lady friends tacoma is leaking at the pinch seam too. She has a 2013, leaking at the lower drivers corner. Fuse box is usually wet and carpet soaked. Hopefully it will just take some RIGHT STUFF and seal it up.