Ignition Cable: Service and Repair

Spark Plug Wire Remover:

SPECIAL TOOL(S) REQUIRED







REMOVAL
1. When removing ignition wires from spark plugs, use Spark Plug Wire Remover 303-106 (T74P-6666-A). Grasp and twist the ignition wire spark plug boot back and forth on the spark plug insulator to free the boot.

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







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

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

Removing Ignition Wires At Coil Pack:

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 boot with Silicone Brake Caliper Grease and Dielectric Compound D7AZ-19A331-A or equivalent meeting Ford specification ESE-M1C171-A with a small, clean tool prior to installation.
2. Install each ignition wire to the proper terminal on the ignition coil. The terminals on the ignition coil and the ignition wire are numbered. Make sure the boots are fully seated and that both ignition coil boot locking tabs are engaged.

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

3. Route ignition wire and ignition wire separators.
4. Connect ignition wire to spark plug.