I have a 94 s 10 2.2 Tues when it was so cold my upper radiator hose busted I replaced it that evening and it ran fine the next day I drove it to work had no problems when I got off work it wouldn't start. It would turn over and hit like it was going to but wouldn't. I messed with it and kept trying to start it and finally it did. I drove it home and it did fine. I turned it off and it cranked back up fine then later that evening I tried and it was doing the same thing. It hits like it wants to start but it won't ...any ideas what it might be?