Well, that sound is usually what happens if the camshaft chain is ratteling around during start up. Seeing as the 2.5L V6 has a chain and the 2.0L 4cyl. is a belt, are you sure the car is a 2.0L?
My Cars
1999 Silver Frost SVT - 80,000km #2603/2760 Aug. 10, 1999.
1996 Mercury Mystique LS V6 MTX - retired @ 323,151km.
1995 Ford Contour V6 MTX-sold @ 214,000km