i had the same promblem too karilyn. my car was hesitating they said it was my fuel pump cause it had been replaced a week before i got the car. so now 2 yrs later after we fixed the hesitation with no money cost at all. go call ford motor company dont call the dealer and and say you bought this car useed and just explain the sistuation keep bugging them and also ask FMC if theres any recalls u have to do on your car did u get this car from a ford dealer or another dealer? well good luck karilyn