Cadillac Repair: Windshield fogging, cadillac eldorado, seal tabs

Question
I have a 1986 Cadillac ElDorado.  I ran the defroster over the week-end for an hour or so.  Since then, everytime I drive the car, the windshield fogs up on the inside, even with the heater/AC controls turned off.  I also smell antifreeze fluid although none appears to be leaking into the passenger compartment or onto the street.  Do you have an idea what is causing the condensation?
Richard

Answer
Hi Richard, Sounds like you have the beginings of a heater core leak. It may take 3-4 days for anti-freeze to start showing up on the ground through the evaporator drain because of ther seal tabs that are in your cooling system. I would start shopping around for prices and then get the heater core replaced. Bill