Question about 2004 Mitsubishi Endeavor

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2007 Endeavor Within months of summer purchase, the AC would drip condensor moisture into pass. side floor. Mitsubishi honored this under warranty. I had been using the AC this summer however last week I noticed a mildew odor so I checked the carpets. I discovered the same issue as before. The fan also makes a strange noise (I think the water drains onto it) when making a left turn only. I pulled the carpets out this morning and the dash apart however I cannot locate the "plugged drain" as it was explained to me. I would like to address the issue myself as I prefer to do this stuff myself (cause I know it will be right?) Thank you, Bill

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  • dubsud Aug 02, 2009

    no it is coming from the condenser/evaporator. it is stagnant water with no anti-freeze

  • dave smith
    dave smith May 11, 2010

    is it your heater core?

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Bill,

This is extremely common on Endeavors, and is caused by a blockage in the drain of the AC system. It can be caused by leaves/debris or insulation foam that has come loose. There is a bulletin to remove the foam and any leaves/debris under warranty (5y/60k) and install a cabin filter to prevent recurrence.

Your previous repair was likely done prior to the cabin filter update to the bulletin, and a cabin filter was not installed.
The updated bulletin that includes the filter was issued September 2008. If your repair was done prior to that, you did not receive the cabin filter, which is why you are backed up again, and you ARE eligible to the have the repair performed again under warranty, this time with a filter. Your dealer will need to contact their DSM for approval to perform the repair again, but they will honor it if you fit those circumstances.

This is not a repair I would recommend taking on yourself. It does require complete removal of the dashboard, all components, and complete ac/heater box (requiring draining of coolant and proper discharge and storage of refrigerant).

Posted on Sep 09, 2009

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