I have an 89 mustang 5.0. It won't crank over. I have replaced everything possible. It will start right up when I push start it. Is it in the wiring and if so can anybody help me? Any suggestions would be greatly appreciated.

 

If it doesn't do anything at all when you turn the key, then it is probably a bad starter. Check your connections on your starter, make sure they are all tight. A loose connection could be the problem.