Question about 2002 Mitsubishi Lancer

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2002 Lancer heat/ac ductwork leaking water.

My Lancer is leaking water from the ductwork through the blower motor, and on to the passenger floor. It only leaks out when I make a sharp left turn, and only on the passenger side. It is not antifreeze/heatercore, and I have had the windshield checked for leaks. I believe it is condensation build up, but it seems like an awful lot of water for that, so I cannot be for sure. Any ideas as to what might be causing this? How to check it? And finally, how to stop it?

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  • rbansal Sep 07, 2008

    My mitsubishi lancer is leaking tons of condensation under the glove compartment. It is very difficult to remove the bottom cover of condensation motor. I can see the fan is clogged with dirt and seems like a simple solution. The only way to drain out the hoses is to dismantle the front panel and taking off the motor assembly. I hope they have corrected this problem.

  • RedFoxLeo Sep 08, 2008

    Same problem in a 2005 Lancer 1.6L with only 40,000 KM, i am sure it is dirt clogging it up, because i live in Cairo, Egypt. (Download All My Tools for Free)

  • sneaky2 Sep 17, 2008

    I have had this same problem in the past - the dealership was able to clean it out and charged me about $100 which included freon.now they are telling me i need a new evaporator, etc and that it is going to cost me about $1300 to fix! I am shopping around for prices - this SUCKS!!

  • jostef Apr 30, 2009

    2002 lancer............. the middle AC vents not sending as much air as the side vents........................anyone has that problem???????

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Hi,

I can't believe I found a site that talks about the exact problem I'm having with my '02 Lancer. It must be a common problem for anyone living in a humid climate. The hurricanes here in Texas produce this problem almost state-wide as all of our A/C units are flowing water like crazy right now.

I'd like to expand on the solution that briankc43 so graciously provided above. The drain tube for the condensate reservoir is, indeed, found on the firewall on the driver's side (left hand drive vehicles if there's another). It's a small (1-1/2") rubber tube bent 90 degrees pointing down. In order to get to this tube you will probably have to remove the air intake tube that houses the (I'm guessing here) MAF sensor in order to get your hand down to that area. Once you've cleared the way for your hand the tube pulls off easily from the reservoir drain port that pokes through the firewall. When I did this there must have been nearly 1/2 gallon of water that flowed out! If you have a small, narrow bottle brush it would work nicely raking what muck remains in the interior of the condensate reservior. At this time I do not know if there's any way to introduce more water into the reservoir in order to flush it but this should be sufficient. I guess you could rig a small tube and funnel or syringe to squirt water into the drain port. If this works it may not be such a bad idea to mix a very small amount of bleach into the flushing water to help kill off any fungus as it's a pretty darn good place to grow a fine crop of it!

Because the drain tube narrows by about 1/2 at its end it encourages stop-ups with the dirt and fungus that grows and is deposited in the reservior over time. I thought about leaving the drain hose off but if you did you'd leave yourself open to the possiblity of water getting back into the interior during wet conditions (water splashing up on the firewall) especially if the foam seal on the inside of the firewall was damaged or deteriorated.

I hope this helps those that have been monitoring this site.

Posted on Sep 14, 2008

  • gregellerbe Jun 28, 2011

    old rancher, hey thanks a lot for your help,i fixed it in 10 mins,you are the man.

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I had the same problem in my '02 Lancer, and I found that it is a design flaw in the evaporator. It gets clogged with debris and feeds back through the blower. I remedied this by removing the drain hose (it's an "L" shaped hose coming out of the firewall), and, using a 4 ft. piece of tubing into the evaporator, siphoned out the junk clogging it up. Quick, easy, and free.

Posted on Jul 26, 2008

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There is a filter the dealership will retrofit, it was not installed at factory basically because mitsubishi basically assumed that everyone driving this car would park it in a garage all the time, not needing a debris filter.....

Posted on Jan 06, 2010

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It is a design flaw in the evaporator. It gets clogged with debris and feeds back through the blower. I remedied this by removing the drain hose (it's an "L" shaped hose coming out of the firewall), and, using a 4 ft. piece of tubing into the evaporator, siphoned out the junk clogging it up. Quick, easy, and free.

Posted on Sep 08, 2008

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I had the same problem on my 2002 Lancer a couple years ago. When I check the blower on the passenger side, I noticed it was missing the hose. I tried replacing the hose with a generic brand, and ended up restricting the flow, which in turn burned up a sensor. But it was definitely a hose problem.

Posted on Jul 06, 2009

  • Dho137dh Mar 20, 2011

    The blower creates a vacuum which is why the water from the evaporator, located at the middle of the dash leaks at the passenger side blower. That's where mine leaks. But if you're looking on the passenger side firewall or under the dash, you're not going to find it. Just keep looking for that little L shape drain hose (3"-4")like he said. Driver side but drain is more in the lower middle where you would expect it. I was just looking for a bigger drain hose. Was mine cut?

  • Dho137dh Mar 20, 2011

    I just realized it could happen when making a left turn.duh

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polarcycle
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SOURCE: 2002 Lancer heat/ac ductwork leaking water.

Sounds like your drain tube for the A/C is clogged up. Get someone to blow it out for you, and you shouldn' t have this problem anymore.

Posted on May 30, 2009

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