My 2001 cavalier 4cyl died while going down the road today ,,,It acts like it's out of gas but has 1/2 tank in it...car will turn over but doesn't try to start, The trac light oil light and battery light came on just before the car died, Can anyone tell me what else can be wrong ?? is there a relay or something else that could kill the engine or keep it from starting back up.....thank you Bobby