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.

NOTE: Three different styles of platinum enhanced spark plugs are produced for the 3.8L engine:

^ AWSF-44E spark plugs have a platinum enhanced center electrode and are used in cylinders 4, 5 and 6.

^ AWSF-44EG 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-44EE 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.

3. Remove spark plugs.






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

Gapping Spark Plug:

Adjustment
Using a suitable spark plug gap tool, adjust spark plug gap to 1.3-1.4 mm (0.052-0.056 inch) following tool manufacturer's instructions.

Installation
To install, reverse removal procedure. Install spark plugs by hand and tighten spark plugs to 9-20 Nm (7-14 lb.ft.).