i have a 1989 dodge ram d100 with a 318, i can't get it to start, it won't turn over, i've had the starter tested checked out good battery is good new starter relay, i just replaced the ignition switch it started a few times and now it won't start anymore. could anybody tell me what would cause this and how to fix it.

 

Try this, go to the starter relay and locate the Brown/yellow stripe wire in the connector. Take a small jumper wire and ground one end to the fender or whatever, take the other end and place it in the connector with the Brown/yellow wire. Make sure you leave the connector attached to the relay! This is just for test purposes. Now try to start the truck and see what happens. If it turns over then you have a problem with the neutral safety switch on the tranny or it's wiring...this is assuming of course that you have an automatic tranny.