Cobalt L4-2.0L SC VIN P (2005)
Spark Plug: Service and Repair
SPARK PLUG REPLACEMENT
REMOVAL PROCEDURE
NOTE: 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.
2. Remove the spark plugs with a spark plug socket.
IMPORTANT: Remove any water and debris from the spark plug holes before spark plug removal with compressed air.
3. Inspect the spark plugs.
INSTALLATION PROCEDURE
1. Gap the spark plug, using round wire type spark plug gap gage.
Adjust the spark plug gap to 1.14 mm (0.045 in).
2. Install the spark plugs with a spark plug socket.
NOTE: Refer to Fastener Notice in Service Precautions.
IMPORTANT: DO NOT coat the spark plugs with anti-seize compound. Over torquing could occur and damage to the cylinder head threads may
