Spark Plug: Service and Repair

SPARK PLUG REPLACEMENT

REMOVAL PROCEDURE




1. Disconnect the intake air temperature (IAT) sensor connector.
2. Loosen the clamp at the air cleaner assembly.
3. Remove the push-pin attachment from the outlet resonator/duct assembly to support bracket.
4. Loosen the clamp at the throttle body assembly.
5. Disconnect the PCV fresh air bent hose at the cam cover.
6. Remove the outlet resonator/duct assembly.
7. Disconnect the EI module electrical connector.




8. Remove the ignition module attachment bolts.
9. Remove the ignition module housing assembly with the spark plug boots from the spark plugs.




10. Remove the spark plugs using a spark plug socket.

IMPORTANT: To avoid getting water and debris into the spark plug holes, used compressed air and a shop rag to blow out each spark plug hole before plus are removed.

INSTALLATION PROCEDURE




1. Gap the spark plugs.

NOTE: Do not coat spark plug threads with anti-seize compound. If anti-seize compound is used and spark plugs are over-torqued, damage to the cylinder head threads may result.

Spark Plug Gap: 1.14 mm

2. Install the spark plugs.

NOTE: Refer to Fastener Notice in Service Precautions.

Tighten the spark plugs to 20 N.m (15 lb ft).




3. Apply dielectric compound to the spark plug boots and ensure no corrosion is present.




4. Install the ignition module housing assembly with spark plug boots into position.

Tighten the ignition module-to-camshaft cover bolts to 10 N.m (89 lb in).

5. Connect the EI module harness connector. Push in until a click is heard and pull back to confirm a positive engagement.




6. Position the outlet resonator/duct assembly into position.
7. Connect the PCV fresh air vent hose assembly.
8. Tighten the clamp at the throttle body assembly.
9. Position the outlet resonator/duct assembly up with support bracket and install the push-pin.
10. Tighten the clamp at the air cleaner assembly.
11. Connect the intake air temperature (IAT) sensor connector.