truck will not start
Jump the solenoid relay on the fender well, for a second only, and see if the engine spins. If it does, replace the solenoid relay. If the starter still just clicks, tap on it with a hammer. If it starts, replace the starter.
Check battery cables for corrosion and make sure they're tightend including the one going to the starter
Search Ford F-150 Questions
Ford F-150 Experts