Put the key in ignition, lights come on, truck won't start. Just a buzzing sound from steering column area, not engine. Checked battery… Fine. Replaced ignition switch. Replaced starter relay. Still won't start when i turn the key… BUT… It will start if i use a jumper wire from positive battery terminal to exposed terminal on relay (removed push on connector - signal wire from the ignition switch).
What could be the problem?
Read more: 02 ford f150 starting problems?
