I have a 89 f250 and i think my ignition switch is bad. Here is what happened. The truck starts, then the starter keeps turning. I thought that the solenoid was sticking, so i replaced it but it still does the same thing. I tested the switch wire going to the relay and when in the start position, there is 12v there. When the key is in the run position, there is 7 volts there. I think that the switch just isnt grounding the start wire after it is released. Am i right?

Thanks for your help in advance.

Beau

 

Ignition swx a probability, there's good troubleshooting in the "Engine starts,Runs & Dies according to Key positions" post from June 18th in the "Electrical Wiring/. ." forum section.

 

Could your bendix on the starter be sticking?

 

Well, i changed the switch and it works fine, thanks for your help.