Another problem with my F150
when i try to start my truck it just clicks, when i put a jumper cables on it it pops right off, its. Now heres the thing, its not the alternator i dont think, cause it runs fine when it gets goin, i can use the lights and radio and etc. so i dont think its that, i replaced the battery terminals with new ones, and checked the negative cables, and seems to be a good ground. when i jump it it pops right off, then i let it run for however long and when i shut it off, even if i try to start it right away it just clicks again like theres no charge in the battery! Can that be the starter?