Been having problems, trying to fix the ghetto wiring on my notch. I hooked up the new solenoid because i'd start it and the starter would keep spinning and i'd have to hit the solenoid to get it to stop. I hooked it up and it worked perfect 3 or 4 times. next day went to show a friend the car and started it up and it did the starter wouldn't shut off again. I've the replaced the starter brand new, brand new motorcraft solenoid, brand new battery and starter cables. the only thing left is the ignition switch i noticed the front screw is missing on the ignition could this be the problem or something else? Also im considering replacing the whole wiring harness the wiring is so bad. has anyone done this? how time consuming?