I have a 2002 blazer i just purchased, it has a brand new battery in it, but didn't want to start the other day. When I tried to start it I gave me just one hard click and nothing, it seemed like the battery was fine though, I tried jumping the blazer but nothing happend the first 3 times then all at once in started. The truck had started every time since this issue and its been lot colder the past few days. It doesn't seem likely it was the battery, more like a connection problem, do you have any ideas of where to look for a connection. The battery terminals seem to look good, any ideas?

 

The Starter. Its probably gone bad.