Spark Plug: Service and Repair
REMOVAL1. Remove air cleaner inlet tube assembly as required.
Spark Plug Wire Remover:
2. Using Spark Plug Wire Remover Tool T74P-6666-A, grasp and twist boot off spark plug.
3. Using appropriate socket, extension and socket wrench, loosen spark plugs and remove any dirt or foreign material from spark plug areas of cylinder head with compressed air. Remove spark plugs from cylinder block.
Spark Plug Inspection Chart:
4. Refer to the Spark Plug Inspection Chart to determine spark plug condition. Replace spark plugs as required.
5. Using an appropriate gapping tool, check and set the spark plug electrode gap to specifications. Refer to the Vehicle Emission Control Information (VECI) decal located in the engine compartment.
INSTALLATION
1. Install spark plugs into cylinder block. Tighten to 20-27 Nm (15-20 ft lb).
2. Coat entire interior surface of ignition wire boot with Silicone Dielectric Compound D7AZ-19A331-A, WA-10 meeting Ford specification ESE-M1C171-A or equivalent. Install onto proper spark plug. Make sure spark plug wire set is completely seated.
3. Install air cleaner inlet tube and inside engine cover, if required.
4. Start engine and check for proper operation.