Common problem. Waterpump Ba bye. If you can change spark plugs on the Duratec than you can do the pump. Pretty easy. $70 for the one with the metal impellar and some coolant.

http://www.contour.org/FAQ/FAQ.php?s=probs&displayid=9

-'96 SE MTX 3L -'98 SVT 1,173 of 6,535 -'05 Mazda 6s, loaded, g/f's ride -Need a 96-00 manual on CD? PM or email me