How do I remove a spark plug broken off in the engine block of a 2002 Malibu? I successfully removed and changed three spark plugs in my 2002 Chevy Malibu. The fourth one broke off.
Warning try this at your own risk I have heard this works on a ford motor...
Spray a little penetrating oil down around the spark plug to help loosen it. Let sit for about 5 minutes or until a decent amount of the oil evaporates. Put a rag over the spark plug hole to prevent anything from falling in (or possibly fly out).
Quickly crank the engine one cycle to build compression and hopefully pop /loosen the broken piece of the spark plug.
Pull the remaining piece out with a long grabbing utensil or magnet.