Recirc was off when it fogged up. Did the checks you told me about and everything is as dry as can be with no smell of antifreeze. Didn't fog up today, though I did not try to set the air to blow on the windshield. I just had the car washed when this all happened. A friend said this happened to him once after he has his car washed and he believes it was a chemical the place used to clean either the dash of windshield as the place changed chemicals and it never happened again. Sounds confusing to me. Will keep an eye on the system to see if I get fog again. Glad to see that the dash will not have to be removed to get the heater core out if/when it needs to be changed.

Thanx.

Keith