Need any input on what may be causing my truck to not start.
2001 Nissan Frontier wont start, but starts up right away when jumped. Battery is 2 years old and tested good, alternator sends back 14.6v to battery so that tested good too. Whether its been driven 10 minutes or an hour, it wont start even right away. Clicking noise is present when turning key. O'reillys said it could be starter? I'm skeptical because it doesnt hesitate at all when its got a second battery hooked up. Don't think theres any current leaks and no lights/accessories left on when truck is off.