Engine turn over but popping sounds coming from exhaust. Won't start. Just died.

Thanks Pushrod will look into that. Thought maybe the crank sensor. Was also told that GM didn't put very big of a wire to the ignition coil and could be a wire broken to it. Have my work cut out for me. Thanks again.

Well if it's getting fire to the plugs then it MIGHT BE a weak coil but not a broken wire .. Crank sensor is working ok as well .. Cracked dist cap (cross firing - popping from exhaust) is common and rotor replacement also good idea. .. Let me know how it turns out.