if you are talking about the belt slapping the cover you can do a few things. you can just remove the cover, use washers to raise the cover (you can do this yourself) or you can get a revised cover, I think there is a revised cover...
- 95 Mystique LS - Zetec/5spd
- 99 Contour SeVT Sport - Duratec/5spd
Official NE-CEG Contour/Mustang Family