Three problems related to engine and engine cooling have been reported for the 1998 Mercury Mystique. The most recently reported issues are listed below.
Lost compression in one cylinder, its being looked at now.
Engine blew on a trip to st. Louis car was under fords extended service plan because I could not produce all of my engine maitance reports even though I tried to explain to Ford that many times I did my own oil changes they have refuse to honor their extended service plan.
Excessive overheating. Dealer has replaced temperature gauge, and other parts, but still not accurate.