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Water leaking into cab from under dash

Discussion in '1st Gen. Tacomas' started by climbontherocks, Jul 14, 2010.

  1. Jul 14, 2010 at 6:14 AM
    #1
    climbontherocks

    climbontherocks [OP] New Member

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    Jordan
    Rhode Island
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    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. :confused:
     
  2. Jul 14, 2010 at 7:17 AM
    #2
    skytower

    skytower Well-Known Member

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    Hitch and wiring, aux back-up light, rear strobe lights, radio and underseat sub.
    Its probably a plugged ac drain, or leaky windsheild. Most likely the ac drain, though.
     
  3. Feb 7, 2011 at 9:24 PM
    #3
    jrukus

    jrukus jason r

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    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
     
  4. Feb 7, 2011 at 10:10 PM
    #4
    newskooler

    newskooler Well-Known Member

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    Lake Shastina,ca
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    X2
     
  5. Feb 7, 2011 at 11:05 PM
    #5
    SRQ TACO

    SRQ TACO "You've Got Red on You"

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    x3
     
  6. Feb 8, 2011 at 6:13 AM
    #6
    climbontherocks

    climbontherocks [OP] New Member

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    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!
     
  7. Feb 8, 2011 at 4:41 PM
    #7
    skytower

    skytower Well-Known Member

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    Hitch and wiring, aux back-up light, rear strobe lights, radio and underseat sub.
    Glad it was something cheap and easy!
     
  8. Feb 11, 2011 at 12:04 PM
    #8
    jwicker

    jwicker Well-Known Member

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    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
     
  9. Mar 10, 2011 at 10:31 PM
    #9
    jchavez915

    jchavez915 New Member

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    I got the same leak under my dash passenger side... having dome difficulty removing a/c drain pipe... any tips? Thanks.
     
  10. Mar 10, 2011 at 10:38 PM
    #10
    jchavez915

    jchavez915 New Member

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    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
     
  11. May 19, 2011 at 10:25 AM
    #11
    m&m1951

    m&m1951 Member

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    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.
     
  12. Jan 25, 2013 at 7:21 PM
    #12
    tacoma guy

    tacoma guy Well-Known Member

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    Bilstein 5100's set @ 0 with OME 883x coils up front . Viper Alarm. Wet Okole seat covers. WeatherTech Floor liners front and back. Oem Toyota chrome exhaust tip. American Outlaw Wheels (Buck shot). 265/70R16 Hankook Dynapro ATM's.
    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 .
     
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