Ignition Cable: Service and Repair

REMOVAL
1. Disconnect ignition wires from spark plugs by grasping the ignition wire spark plug boot and twisting slightly in both directions to free it.

CAUTION: Do not pull on the ignition wire as it may separate from the connector inside the spark plug boot.

Removing Ignition Wires At Coil Pack:

2. Disconnect the ignition wires from the ignition coil by squeezing the locking tabs and twisting while pulling upward.

CAUTION: Do not pull on the ignition wire as it may separate from the connector inside the ignition coil boot.

3. Open ignition wire separators and remove ignition wire.

INSTALLATION
1. Whenever an ignition wire is removed for any reason from a spark plug or ignition coil, or a new ignition wire is installed, coat the entire interior surface of the spark plug and ignition coil boot with Ford Silicone Brake Caliper Grease and Dielectric Compound D7AZ-19A331-A or equivalent meeting Ford specification ESE-M1C171-A prior to installation using a small, clean tool.

CAUTION: Proper installation of ignition wires is critical to vehicle operation. If one ignition wire is not properly installed on spark plug or ignition coil, both spark plugs connected to that ignition coil may not fire properly.

2. Install each ignition wire to the proper terminal on the ignition coil. The terminals on the ignition coil are numbered. Make sure the ignition coil boots are fully seated and that both ignition coil boot locking tabs are engaged.
3. Route ignition wire through ignition wire separators and close ignition wire separators.
4. Connect ignition wires to spark plugs.