If you have a warrenty, bring it to a Ford Dealer for servicing. But if you know how to or dont mind learning how to work on a car, do the plugs, wires, stuff like that yourself. It'll save you loads of cash. Just pick up a Chiltons or Haynes manual, thats all youll need. But like I said, if you just dont wanna mess with that sort of thing, bring it in, I suppose its not too much more, just enough to make me want to do it myself!