footwell flood?

If the ac drain was clogged it would get wet only from ac being used and wouldn`r steam up the windsheild.
Sounds like your heater core is bad.

bg
October 2005

look under the bonnet, on the bulkhead, you`ll see a rubber hose coming from under the windscreen area, remove this and clear the "gunk" from it then refit it, chances are it`s full of dead leaves etc, when it rains it wont be draining fast enough.
( had the same prob on my cavalier )

Russell
June 2005

Cheers Trevor sounds good to me. The Car in the Garage at the moment having the Heater Matrix checked

Sherlock
October 2004

it sound like your heater matrix {a small radiater} or a pipe leading to it has brocken

trevor
October 2004