Spark Plug: Service and Repair

LH Side Shown, RH Side Similar:

REMOVAL
1. Disconnect ignition wires from spark plugs.
2. Loosen spark plugs 1/4 turn and remove any dirt or foreign material from spark plug areas of cylinder heads with compressed air.

WARNING: EYE PROTECTION IS REQUIRED WHEN USING COMPRESSED AIR OR PERSONAL INJURY MAY OCCUR.

NOTE: The spark plugs in the RH cylinder head are accessed from beneath vehicle.

3. Remove spark plugs.
4. Check and adjust spark plug gap.

NOTE: Refer to the Spark Plug Inspection Chart to determine the condition of spark plugs.

INSTALLATION
1. Follow removal procedure in reverse order.

NOTE: Three different styles of platinum-enhanced spark plugs are produced for the 3.8L engine. Each spark plug has a different part number and use. AWSF-42E spark plugs have a platinum-enhanced center electrode and are used in cylinders 4, 5 and 6. AWSF-42EG spark plugs have a platinum-enhanced ground (side) electrode and are used in cylinders 1, 2 and 3. If any spark plug is removed and re-installed, it MUST be installed in the same cylinder from which it was removed. If any spark plug is replaced, use only spark plugs with part number AWSF-42EE as listed on the Vehicle Emission Control Information label. This replacement spark plug has double-platinum enhancement on both the center and ground electrode and may be used in all six cylinders.

2. Install spark plugs by hand and tighten spark plugs to 9-20 Nm (80-177 lb in).