Okay well heres the deal. I do not drive the car (91 vert) very much but, today when i did , i noticed that the winshield fogged up real bad after i shut it down probably 20 mins later. It does not have a leaky roof so i am assuming this could be a bad t-stat, or something relative to a cooling issue.

Any input would be greatly appreciated. Thanks.

Blake

 

That could be a sign of a bad hose going to the heater core or a bad core. If your lucky its just condensation from moisture from some water getting in somewhere. Check under the carpets for coolant.

 

heater core as said above but does it do it with the ac on??? the ac removes water from the air... also check inside the fender well and under the carpet for leaks if your car is wet inside the windows will fog to

 

Was it outside in the rain at all? Another thing to check is the vapor barrier in the doors (under the door panels). If a previous owner removed the plastic (or hacked it up to put in speakers, etc.), you could be getting moisture into the car from there.

-chris

 

Those are some of the best things to look for i have ever heard! Thank you for the great responses and i will keep you all posted.