» » »

Toyota Q&A

Ask Your Question

2004 Toyota Matrix Question: air conditioner leaks water

 

Question

vdonnellan, 1.8L 4 Cylinder, Potomac, MD, July 28, 2009, 12:19
 Rookie

There is water in the front and back passenger floor. I assume that it is from a plugged air conditioner drain. How do I find it and fix it?

3 Answers
Flag This
  • Medium-star Best Answer
    patrick mannion from Greg Solow's Engine Room, July 28, 2009, 21:38
    Profile_thumbnail
     Master

    The heater box is on the passenger side of the dash. Open the passenger door, kneeling in the passenger door opening look with a flash light at the bottom of the heater box there is usually a little black rubber hose that allows water caused by condensation on the evaporator to drain out into the engine compartment at the firewall. I suspect a passenger has inadvertently knocked of the hose from its attachment at the fire wall or heater box.

    Flag This
  • Reply

    vdonnellan, July 29, 2009, 08:26
     Rookie

    Thanks so much autotechpat!!!! I can't wait to tell my husband that I fixed it when 2 repair shops couldn't. You are awesome!
    Victoria

    Flag This
  • Reply

    patrick mannion, July 31, 2009, 18:19
    Profile_thumbnail
     Master

    you are very welcome thanks for your encouragement!

    Flag This
  • Reply

    Visitor, June 26, 2010, 10:22

    you're awesome! fixed my problem!!

    Flag This
  • Reply

    Visitor, July 13, 2010, 18:24

    Thank you!!
    Considering duct tape to make this fix more permanent. Does not look like a hose clamp will work.
    Amazing how much water comes thru there.

    Flag This
  • Reply

    tcarter, July 25, 2010, 14:05
     Rookie

    I have a very similar problem on my 2006 Corolla. The driver side front and rear floorpans are completely soaked with water however the drain tube on the passenger side is and has been in place the whole time. we have had no rain to speak of in the last week so what could be the cause?

    Flag This
  • Reply

    Visitor, August 12, 2010, 18:23

    You just fixed my 2007 matrix. Wet floor panels passenger side. Thanks so much!!!!

    Flag This
  • Reply

    Visitor, January 04, 2011, 20:31

    Could this also be the case if it's the rear passenger floor? It's not at all in the front passenger...

    Flag This
  • Reply

    Visitor, July 12, 2011, 06:52

    Patrick, awesome and easy fix to a big problem

    Thanks again

    Flag This
  • Reply

    Visitor, July 15, 2011, 15:40

    Great help as we have been going crazy with the water build up. I suspected a clog problem and your advice was right on as the hose was pulled off and dripping away. I pushed it back on and now will begin the drying process. By the way the hose on our 2004 Martix is all the way on passenger left side about 1/4 way down and really not behind the heater box. I had to pull carpet down to find hose but if you know where to look that won't be necessary. Thanks again!

    Flag This
  • Reply

    Visitor, July 30, 2011, 11:23

    A previous reply said that reconnecting the tube didn't fix the problem. Other forums point out (1) it might be clogged; clear it (a) by flushing the tube using water, starting at the a/c intake [is this safe??] or (b) clearing it with a small wire hook; (2) if bad odor is developing, (a) use outside intake rather than recirculate for the last few miles of trip and/or (b) spray a disinfectant into a/c vents.

    Flag This
  • Reply

    Visitor, August 16, 2011, 13:02

    Hello! My wifes's friend has a 2006 Toyota Matrix that was having the same problem as others in this post. Namely, the water appearing on the passenger floor. Thanks to your advice to others I checked under the carpet and guess what?? The "Little L shaped Hose was disconnected from the heater box!! Thanks to you we saved $435.00 which is what we were going to pay for a "Heater Core". Greg, Sacramento, Ca. God Bless.

    Flag This
  • Reply

    Visitor, August 17, 2011, 21:02

    Thank you so much! Your advice made it possible for me to fix the problem in less than 2 minutes. Amazing!

    Reply
    Flag This
  • Answer #2

    Visitor, May 30, 2010, 14:33

    I had the same problem with water on the passanger side floor. I told my husband how to fix the problem thanks to your advice!! We had a bet on who could find the sloution. I WON!!!! Thanks again. CS - OHIO

    Reply
    Flag This
  • Answer #3

    Visitor, July 06, 2010, 18:53

    I had the same problem of water soaking the floorpans on the passenger side. I had suspected it might be an air conditioner leak and the posts I read here confirmed my suspicions. A quick check showed your predictions to be true - the hose had been knocked off the heater box drain. Looks like it will happen again, given the exposed nature of the hose, but I now know it's a 30 second fix. Thanks for the posts.

    Reply
    Flag This