[john]

Could be plug wires but they do not usually "just go out." The clicking or buzzing could be the spark grounding itself to the engine possibly. Look late at night in a dark garage. Start the car and examine the wires. You will see little green sparks if there is a whole in the insulation. You would also remove the wire while the car is running and see if it is getting plenty of spark. May want to do a compression test also. Does it throw a CEL?