mine did that a couple of times whenever i disconnet the battery. have someone help u do this, first disconnet the battery cable and have a friend to turn the ignition key. while holding the negative cable keep touching to the to the negative battery terminal as if u were trying to create a spark while ur friend turns the ignition a split second after u touch it. it takes a couple of tries my first time it took me 1/2 an hour. u hear the enigne try to crank eventually the timing will be right and the car will start. also check if u have a cut of switch.