Smoking Vents?

[~The Jester~]

Originally Posted by Philossifer

My guess is that your evaporator drain is clogged. From under the car on the passenger side, find the drain and run a wire coat hanger through it to unclog it.
Good luck,
Phil

Yeah, what he said! CAREFUL with that coat hanger though!!! Don't want to poke holes in that expensive HARD TO CHANGE evaporator and/or heater core.

Like Phil said, that's a common problem down south, in high humidity areas. Try the easy stuff first, then go from there.