Spark Plug: Service and Repair
REMOVAL / INSTALLATION1. Remove and install the high-tension leads.
Caution: When the spark lead is to be pulled off, be sure to pull on the boot itself, not the lead.
Install Spark Plug Socket Squarely Over Spark Plugs:
2. Remove and install the spark plug with a plug socket.
Caution: Be sure the socket fits squarely over the spark plug.
Note: If the original spark plugs are to be reinstalled, they must be installed in the locations from which they were removed.
3. Apply anti-seize compound or molybdenum-based lubricant to the spark plug threads.
4. Tighten the spark plug to the specified torque.
Tightening torque: 9-20 N-m (7-14 ft-lb)
Note: Coat the entire interior surface of the high-tension lead boot with a silicone dielectric compound or equivalent.
Note:
^ Three (3) different unique styles of platinum enhanced spark plugs are produced for vehicles with Electronic Ignition (EI). Each style is distinguished by their part number suffix letters.
^ The suffix letter "P" indicates center electrode is enhanced with platinum.
^ The suffix letter "PG" indicates the ground (side) electrode is enhanced with platinum.
^ The suffix letter "PP" indicates double platinum enhancement on both the ground (side) and center electrode.
^ If a spark plug is removed for examination, it must be reinstalled in the same cylinder. If a spark plug needs to be replaced, use only spark plugs with the service pant number suffix letter "PP" as shown on the engine decal. Refer to the following Platinum Enhanced Spark Plug Replacement Chart for correct parts usage.