Here's a long shot, but it's possible. Have you changed your cabin air filter? At the base of the windshield, underneath the plastic covers behind the hood is the cabin air filter. It's supposed to keep the worst of dust and pollen out of the incoming air for the HVAC (heat, vent & air conditionon) system. There is a plastic housing that holds the filter and behind it is a sponge type gasket that seals the housing to the firewall. The gasket can shift and/or develop leaks and if it rains hard enough or you washed your car, water trickles in down the inside of the firewall into the passenger compartment. Sometimes it will get all the way down to the floor, but other times it trickles down just enough to stay behind the dash and not make it to the floor, so you wont even notice. My windows where fogged up inside some mornings when I first got into the car for about 4 or 5 months, it drove me nuts! I found it when I went to change the filter. There was a lot of built up crud in the area, so I washed it out with the hose. The water started streaming onto the interior floor. I disassembled the filter housing and found that the gasket had shifted and pulled away from the fire wall. I RTV siliconed the gasket back into place on both the filter and firewall side. That was in 97 and I have not had a problem since.
Like I said, it's a long shot but it happened to me!
Former, now returned CEG'er!
95SE MTX, (AKA "The Road Rat"). Stock except for:TH fix, B.A.T. big brake kit, tranny cocktail and lots of re-insulated wiring! May yet be a 3.0!
"Speed doesn't kill, stupidity does!"
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