Question about 2004 Mitsubishi Endeavor
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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Posted on Jan 02, 2017
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