I have a 99 4.6 8 cyl. ford F150 truck, the starter runs even after you start it and still runs after you turn the truck off.

maybe,just maybe,the ignition switch actuator/rod is out of adjustment or broken. or,has someone re-wired that solenoid wrong under the hood? did someone hook the starter cable and one of the battery cables to the same terminal on the solenoid under the hood? if someone did, it will cause the starter to continually run! post findings.

I had the same problem on my 1999 .It had burned two starters. I changed the ignition switch but it happen again. But it has been awhile since it did. So I don't believe anyone rewired anything unless they did mine also. It's just another one of joys of owning a Ford. If it happens again try changing your cylinder switch.

Water leak from top left corner getting into the fuse box.push outward on the windshield and you'll probably see it move