Okay, I had my '01 Spyder in the shop for brakes last week so I had them try to resolve the problem with the water on the drivers side floorboard. I read them the message below and they tried that. They also called the Mitsubishi dealership. Mitsubishi has issued a TSB on this problem which suggests that the air inlet is blocked with leaves and to install the 'optional' air filter in the location behind the glove box.
So the shop installed the filter in the location behind the glove box. They also blew the drain line out with air - while it was on the lift, they showed me the drain line and that it was already clear because it was dripping water, I reached in there and touched the line. They went ahead and blew some more compressed air in it. I took it home and just a couple of days later it was soaked thru the floor mats.
I'm at a loss. I park my car in a garage at home and at work. I haven't been driving in rain. The floorboards were getting wet even in the winter when I was not running the A/C. It does not smell like antifreeze so it's not the heater core. I have not crawled in and looked under the dash. Any ideas.
[COLOR=blue]ok, i found it. its on the drivers side and is really difficult to get to. you can see it if you look up right next to the rubber thing holding the muffler assembly on that side. look straight up, it is a black tupe about 1/2 inch sticking out of the firewall. you might need to reach around and move some of the fabric on the firewall to get a good view.