You should change your spark plug wires also. Sounds like what happened to mine.
On the side note... I have a few things for my zetec that I'm selling. bousch ultra premium plug wires and 4 douple plat champion spark plugs. Neither of them have more thatn 5k on them. New coil pack also. If ANYONE needs to fix ANYTHING on their zetec then give me a call. I have got offered CRAP for this car and I've already made more money selling TWO parts than I got offered for the entire damn car! I have taken damn good care of her and she deserves the right to give life to a contique on the edge. I'm going to repost this in the classifieds but please, I really don't want to trash her. EVERYTHING must go!
