You should always take your Ford to an independent shop if its out of warranty(and sometimes even if it is under warranty). My 96 Contour needed a recharge, cost $30. Yours may be leaking. The shop should add a dye to the coolant so that if it stops cooling then they can find the leak easily.

"Wow, that sank fast." "Yeah, like a rock."
96 Contour GL ATX
9mm Ford Racing Wires; 2 Resonators down, 1 to go;"Special airbox"; many mods planned
Sony CD player: 50wattsx4;remote;
Speakers=50 watt Pioneer 6x8s
Ross Evans smile