My car won't start. I parked my car at school, came out an hour later, and it won't start. Battery is fine. I turn the key to start and nothing happens. I turn the key to on, the cluster lights come on, I turn the key to start and nothing happens. It's as if the ignition wires were cut, which they weren't. So I push started it and it drove fine. What do I do? No fuses are blown. Where do I start troubleshooting?