I've been having this problem all summer. Every once and a while the car will not start after being run for a little bit, cranks but no start. I have replaced the plugs wires cap rotor, fuel pump, and the main relay. if i click the key over everyonce and a while it starts then dies (note i don't hear the fuel pump turn on) then i keep turing the key back and forth i hear the fuel pump turn on then the car starts and runs fine.. i am seriously stummped as to what this could be causing this intermittent no start. any ideas are greatly appreciated. if ya need more info to help don't hesitate to ask. thanks a bunch!