Question about 2001 Mitsubishi Eclipse

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Trouble with water on floor.

The front driver side floorboard and back floor board is flooding. I think the drain line for the ac unit is plugged up, but I can not find it to clean it out.Where is it?
I am not losing any water from the radiator and it is not coming in from the roof. Help?

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  • ezrafan Jul 07, 2008

    I also have the same problem this summer. This only happens when I drive long distances (more than 60 miles) and only when I have the AC on so I do believe the drain is clogged but I also do not know where this drain is to correct the problem.

  • Anonymous Jul 11, 2008

    I have this exact same problem...

    I took it to a repair shop that said it was a clogged drain tube and they said they repaired it by blowing/sucking the water out of the drain tube from the outside.

    Days later, water everywhere again...

    Problem must be further up in the dash...

  • Anonymous Jul 15, 2008

    I have a 2001 eclipse with water on the driver floor. I don't think it is from rain but it could be. The water seems to be closer to the door and it is pretty dry up by the gas pedal.

  • dragonswings Jul 21, 2008

    the drain line is pluged and draining on to the floor is there a wat repair it



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My '01 Eclipse Spyder does the same thing and I have been struggling with this problem for the past year. I even took it to a mechanic who supposedly blew out the debris and said it should work okay now. Not.

There is a Technical Service Bulletin for this problem and the dealer and any mechanic that has access to the TSBs should know about it. The bulletin is TSB-04-55-008. I am lucky enough to know someone who works for AllData and he faxed me the TSB.

It basically says that all debris needs to be cleaned from the tube and the evaporator housing, a portion of the housing top needs to be removed and then an add-on filter needs to be installed. The part number for 2000 to 2004 Eclipse is MR500360 and there is a screw set that is also needed MB409435. I haven't done it yet, so I'm not sure how difficult it actually is, but I will forward the pdf to anyone who wants it.

Posted on Jul 14, 2008


I have a 2004 Eclipse and I have the same problem. The driver floorboard and back floorboard is soaked. My seats aren't wet so it's not the sunroof. I keep hearing it must be the drain pipe but I don't know where this is located. HELP!!!

Posted on Aug 29, 2008


I just went to an AC shop in my area. They said this is a commom problem for eclipses. The evaporator box unit is hidden behind the dash and the whole area needs to be removed. they said its a 7.5 hr job for a cost of $380 plus tax

Posted on Aug 08, 2008

Mine does the same thing its the windshiled leaking ask the mecanic to cheak it

Posted on Aug 05, 2008

If you don't have radiator fluid in the floorboard, it is definitely the drain getting clogged. Mine was repaired at a shop and they charge 4 hours of labor for it, think they have to take the dash off and remove the evaporator in order to access the drain.

Posted on Jul 12, 2008

If you don't have radiator fluid in the floorboard, it is definitely the drain getting clogged. Mine was repaired at a shop and they charge 4 hours of labor for it, think they have to take the dash off and remove the evaporator in order to access the drain.

Posted on Jul 12, 2008

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