Originally Posted by kwang0602
Thanks for the feedback...how would I know if the piston had damage done and should I be worried about Ford dealership fixing the problem the right way?
Any damage to the piston would be minimal, and would not be enough to warrant replacing them. It would have little ‘kiss’ marks on it from where it came in contact with the valve. The car is still under warranty. If they don’t fix it the right way then you take it back until they do. Good luck...