What Can Cause Cylinder 5 Misfire?

What Can Cause Cylinder 5 Misfire? Common causes of the code include: Ignition system problems (e.g.a worn spark plug or failed coil pack) Fuel system problems (e.g., failed fuel injector or damaged injector driver) Engine mechanical problems (e.g., a leaking valve or damaged lifter) How much does it cost to fix a cylinder 5 misfire?