When I have my a/c on for a few minuets in my 85 rx7 gsl and switch the a/c off, I always get heavy condinsation imediatly on the front windshield it will go away when I open my windows. I dont think that my heater core is leaking (no coolant loss or coolant smell) and have wondered if there is a drain for the heater box and if so is it pluged? I would like to know where the location of the drain is and if there is a good way to clear it.


Thanks for all the helpful tips,

Chassisguy