Starting issues 1996 4 Runner

I'm having intermittent no start issues. My battery tests good, replaced ignition switch about a year ago, starter was replaced about two years ago. Neutral safety switch has been suggested. When it doesn't start, it's anything from absolutely nothing, a click or sometimes acts like it's gonna turn over but doesn't. What do you think??

 

How are you testing the battery to call it good? If battery is really alright, how are the electrical leads from the battery? Sometimes the positive line corrodes from the inside. Any codes from the OBD?

 

Good battery..meaning auto zone told me it was good. The battery cables look good from what I can see. Not sure how to check inside like you mentioned. I haven't had anyone check for codes yet.

 

Pull the battery cables off and flex them. Do they crinkle? If so, you have internal corrosion.

I had the same symptoms and had to replace 8-10 inches of negative battery cable. The terminal was still solid. The internal copper was full of bluish corrosion when the insulator was cut off.

 

Ok, I'll give it a try today. Thanks