This article show a guide on how to remove spark plug for Ford Focus,hope it helpful for your work!
What you Need?
2Spark Plug Socket
36 inch Extension
5Four Spark Plugs
6Spark plug Gapper
Step 1:Using an 8mm socket, remove the bolt which attaches the coil to the valve cover.
Step 2:Remove the coil/spark plug boot from the chamber.
Step 3:Repeat Step 1 and 2 for all four plugs.
Step 4:Using a Spark plug socket, remove all four spark plugs from the chamber.
Step 5:Using a spark plug gapper, gap the spark plug to the suggested size.
Step 6:Use the spark plug socket to reattach the plugs back into the chamber. Be careful as to not over tightened them. Please use the suggested torque specifications.