Notice: This engine has aluminum cylinder heads. Do not remove the spark plugs from a hot engine, allow it to cool first. Removing the spark plugs from a hot engine may cause spark plug thread damage or cylinder head damage.

1. Remove the ignition coils. Refer to Ignition Coil Replacement - Bank 1 and Ignition Coil Replacement - Bank 2 .




Important: Remove any water and debris from the spark plug holes before spark plug removal with compressed air.

2. Remove the spark plugs with a spark plug socket.
3. Inspect the spark plugs. Refer to Spark Plug Inspection .

1. Gap the spark plug, using round wire type spark plug gap gage.

Gap
Adjust the spark plug gap to 1.1 mm (0.043 in).

Notice: Refer to Fastener Notice in the Preface section.





Important: DO NOT coat the spark plugs with anti-seize compound. Over torquing could occur and damage to the cylinder head threads may result.

2. Install the spark plugs with a spark plug socket.

Tighten
Tighten the spark plugs to 18 N·m (13 lb in).

3. Install the ignition coils . Refer to Ignition Coil Replacement - Bank 1 and Ignition Coil Replacement - Bank 2 .