I need help guys!! As of recently my 56 f100 has been shutting off on me. While driving it is okay but when i put it in neutral because I come to a stop it sometimes dies. When this happens there is no power to any electrical and engine will not crank, it is lifeless. I will then place jumper cables on for a few mins and still no power to anything. after remvoing the cables and waiting about five to ten mins the truck will start just fine. What could be the problem? all cables to battery are tight. Any help would be great