My truck turns over but won't start, than when it starts and you drive it , its fine, when you take the key out the truck still runs.

SOURCE: 1998 ford f250 , starter won't engage

get under and hit starter with hammer a few times

SOURCE: 98 ranger locked in park,ignition key won''t turn to start

there is a harness that feeds the ignition remove your steering wheel cover and you will see about a dozen wires going into a clip that is attached to the back of the steering wheel , those wires give way and are not making contact reach in to the back and pull the harness forward and then try and push each wire back into the clip try this and see if it works it solved my problem basicly it is just a loose wire in the harness,,

SOURCE: 2000 F150, heater, radio,door buzzer works while truck is off

key system on bottom steering column or linkage fro key mechanism to switch broken or main Relay wont quit

SOURCE: 91 F150 runs rough at low idle

If you put a scanner on it and you have no misfire codes I would be looking at either an egr valve stuck open a little or a bad Idle Air Control Valve

SOURCE: 2003 Ford Expedition won't start, doesn't click when I turn the key, the lights work and the radio, so I know it's not the battery.. what else could it be?

I am having a simular problem. I started out getting tire pressure light, brake light, and door adjar coming on when I was driving. It would stay on for a few min and go off. I wasnt getting any codes when it was coming on. Then I started having problems starting my 2007 Ford Expedition with 87,000. I would turn the key and my power seats would not move and I wouldnt get any lights. The only thing that would come on was the radio. When I turned the key I didnt hear anything. I can wait about 5 min and it will start. I have had it at the Ford dealer for about a month and they still dont know what the problem is. I have paid about 900 so far and the only thing they have done is change out the junction box and I still have the same problem. Please help!!