Help my car die out today. When I first start it up it would start but then all of a sudden it shuts off on me. Then when I try to restart it up again, it just won't start up at all anymore. What is wrong with it???? I've tried cranking it again it seems like it want to start up but it can't like something is pushing it back down. Could it be my battery, starter, alternator??? Which is it or what is it???? I know it can't be the plugs cuz I recently just changed them like a month or two ago. Thanks for all the help.