Ford Focus Service Manual: Spark Plugs

Removal and Installation

1. Remove the ignition coil. For additional information, refer to Ignition Coil-On-Plug in this section.

1. NOTICE: Only use hand tools when removing or installing the spark plugs, or damage can occur to the cylinder head or spark plug.

   NOTE:

   Remove foreign material from the spark plug well using compressed air.

   Remove the spark plug.
   • To install, tighten to 12 Nm (106 lb-in).

1. Inspect the spark plugs.
    

   Item	Part Number	Description
   1	—	Deposits bridging spark plug gap
   2	—	Wet black deposits (oil fouling)
   3	—	Dry black deposits (carbon fouling)
   4	—	Normal spark plug
   5	—	Pre-ignition
   6	—	Overheating
   7	—	Fused spot deposits

   
   

1. Check and adjust the spark plug gap as necessary.

1. To install, reverse the removal procedure.