Am I glad I've found this site!! I had the temp gauge "red line" experience Fri night with the same hot air blowing from the A/C. I had to stop 3 times to let it cool off before I got home. I also noticed that when I turned the heater temp to max, I got normal temp air. No heat. Could this happen because the water wasn't circulating through the heater core?

I replaced the thermostat already - didn't do any good. I'm going out to find a waterpump RIGHT NOW!

1995 Contour 132,000 miles
2.5 V6 Duratec