Ignition Cable: Service and Repair

Spark Plug Wire






Removal

CAUTION: Spark plug wires must be connected to the proper ignition coil terminal. Mark spark plug wire locations before removing them.

CAUTION: It is important to twist the spark plug wire boots while pulling upward to avoid possible damage to the spark plug wire.

CAUTION: Do not use special tool on spark plug wire boots with metal heat shields. Damage to the spark plug wire boots may occur.

1. Use the special tool with a twisting motion to pull the spark plug wire off the spark plug.






2. Squeeze the locking tabs and twist while pulling upward to disconnect the spark plug wires from the ignition coil.






Installation

CAUTION: Be sure to orient the spark plug boots so the spark plug wires do not contact the exhaust manifold.

NOTE: Apply Silicone Brake Caliper Grease and Dielectric Compound D7AZ-1 9A331-A or equivalent meeting Ford specification ESE-M1C171A to the inside of spark plug and ignition coil boots of the spark plug wire.

1. Connect the spark plug wires to the ignition coil.






2. Connect the LH spark plug wires.






3. Connect the RH spark plug wires.






VIN X






VIN E










FORD MOTOR COMPANY HAS TWO COIL PACK / SPARK PLUG CABLE CONFIGURATIONS FOR THE 4.0L VIN E and X. BOTH IMAGES ARE SUPPLIED FOR EXAMPLE. MARK SPARK PLUG WIRE LOCATIONS AT COIL PACK BEFORE REMOVING THEM.