Thanks for the help guys. Something I forgot to mention in the first post. My girlfriend was following me on the trip home. There was one time that she called and asked if I had turned on my winshield washers because something "misted" her windshield that appeared to come from my truck. It was a bright sunny day with no water ont he road and at that time I know that no other vehicle was passing us. Anyway about 30 seconds prior to her calling, I switched my heater controls from bi-level to vent and felt a very minor difference in the engine. Nothing alarming, sort of that feeling you get when you turn off your a/c, like it takes a small load off the engine. The thing is, the mechanics told me that they didn't refill my coolant (freon) in the system. Granted the temperature of my interior heater control was set on hot. Not sure what that means. Anyway, it was a one time thing. Had the water come from the tailpipe consistantly, she would have known it. Again, thanks for the help. Any other thoughts I would love to hear.

JC