I was leaving work yesterday jumped in my jeep it started right up I drove for about five minutes shut it off went to start it up again no start it just barely cranked over no big deal I was on a hill so I bump started it but on the way home I could not get in to the throttle or it would cut out. so today I cleaned the battery terminals bump started it same thing it cuts out wnen you get it to the throttle. is it my alternator or what? it is an 87 with a 5 Spd any help would be great thanks.