Starter continues to crank.

Could it be that the electrical part of the ignition switch is bad causing the starter not to stop?

I changed both

The ignition switch switches the solenoid and the solenoid connects the starter to the circuit. Seems like not much else, but a wiring problem could be the culprit. Is this a gas or diesel engine?

It is a gas. I have not changed the ignition switch. I was mistaken. Could that be the problem

The ignition switch, the electrical part not the key and cylinder part is what furnishes the solenoid small wire with voltage to activate it. Usually when there is a problem like you are having it is a stuck solenoid and replacing it cures the problem. If your solenoid is good and the starter wiring is good then next place I'd look is the ignition switch. You could check for voltage at the small terminal on the solenoid key off and there should be none. When the key is turned to start, there should be voltage at the small wire on the solenoid and the voltage at the small wire should be gone when the key is turned to engine run. Take a look at the link.....http://www.agcoauto.com/content/news/p2_articleid/254

Thank you.

OK. I replaced the ignition switch. It still does the same thing when I hook the battery up and it even does it unplug it. Any more ideas

If the solenoid is defective and stuck it will do that. Try unhooking the small solenoid wire and connecting the battery to see if it stops trying to start itself. If this stops it then you need to find the cause for the 12 volts being on the small solenoid wire all the time. The small solenoid wire should ONLY have voltage on it during engine start (starter turning). When you release the key to the run position the voltage should go to zero. If it still has the problem something is powering the starter without the solenoids help.

Try reversing the ignition wire. The LEDs are sometimes marked wrong. The led closer to the passenger side is the led to switch too. If I am correct!!! ?

maybe it could be you have a ford?!?

Make sure your two connections are not touching each other, if they are it will keep looping the starter.

The starter relay is welded closed. Small relay turned on by key that operates the starter coil.

I have a 78 Chevy with the same problem. I bypassed the ignition switch and it still does it. Checked all my other wires for shorts, still does it. Put a bolt meter on everything and it all checks out.

*volt

Do you have an intermittent solenoid and not continuous?

2016 dodge ram 1500 5.7 you turned the key to start the motor and it keeps trying to start

one of the plug on the starter are touching its prolly the smaller one I had to bend mine just a hair and it fixed the problem .

whats happening is the key is sticky inside the assembly, make sure to always pull it back a bit everytime you start it or change the key assembly. i changed four starters in a 2 month period. i also changed the selionod. then i started to pull they key back, everytime i started it and now i never have problems. i also live in a very cold location so it makes it easier to stick.