I purchased my 2007 F150 FX2 with a Mark LT trim and with approximately 70,000 miles with an extended warranty. Approximately, couple months after purchase the throttle control had to be replaced under the warranty. Months later, I began hearing a distinctive tapping sound from the passenger side of the engine compartment. I changed oil regularly every 3,000 miles 5W20. I tried heavier weight 5W30, however, tapping declined but continued. At the dealership, the techs stated that it was normal. Also, during driving the truck misfires in cylinder #2 and multiple misfires while in cruise control and while demanding more power. I purchased a OBD II scanner to test in see if it might be the fuel pump.

Vehicle stalls also. As of this date the vehicle has 170,000 miles. I'm still searching for a possible solution without spending out thousands of bucks.

Well picking an optiopn out of the list was hard. It has happened so many times. It all started about 45k engine misfire. I thought my transmission was going out. Then i got the code read and begain my rediclous journey with my *&^$ truck. I have relpaced them all twice. Oh yeah spark plugs, they have a tendency to stick in the head. That was 540$ spark plug change, what a joke. I can usually change my own plugs, now im paying that. Wow....... Dont know what else to say, except sorry to everone who had trouble early on in the milage. I have 190k now with a new transmission and flywheel. Yes flywheel... Ive always owned ford, all three....:) never again.......