Ignition Cable: Service and Repair

Spark Plug Wire Assembly:

REMOVAL:

NOTE: When removing spark plug wires from the spark plugs, use the spark plug wire remover T74P-6666-A or equivalent.

1. Grasp and twist the boot back and forth on the plug insulator to free the boot.

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

2. Remove the spark plug wires from the ignition coil pack by squeezing the locking tabs of the coil retainer, and remove by using a twisting and pulling motion.

NOTE: Do not pull on the wire.


INSTALLATION:

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

1. Whenever a high-tension wire is removed for any reason from a spark plug or ignition coil, or a new high-tension wire is installed, Silicone Dielectric Compound D7AZ-19A331-A or equivalent must be applied to the boot prior to installation. Using a small tool, coat the entire surface of the inside of the boot.
2. Install each wire on the proper ignition coil terminal. The terminal cylinder numbers are identified on the ignition coil pack. Ensure that the coil wire boots are fully seated and that both coil retainer locking tabs have engaged.
3. Remove the wire retaining brackets from the old wire set and install the brackets in the same position on the new set. Install the wires and retaining brackets on the engine.
4. Connect the spark plug wires to the proper spark plugs.