95 Sierra - Won't turn over
Hi, I have a 1995 Sierra 5.0l 4x4. I just bought it yesterday. I actually went to see it twice before I even picked it up. So that's 3 times that I've successfully started it up with no issues. It does have a new alternator, that's about it for under the hood. I parked it in my drive last night to get to it today. I was going to move it today, but it did not turn over. There are no leaks on this truck. Also, it did rain heavily last night, with severe lightning. I tested the battery, it is fine.
What could have gone wrong? What should I test first? I hope this is only faulty wiring..