Grand Prix V8-5.3L (2007)
Spark Plug: Service and Repair
Spark Plug Replacement
Removal Procedure
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 spark plug wire.
2. Loosen the spark plug 1 or 2 turns.
3. Brush or using compressed air, blow away any dirt from around the spark plug.
4. Remove the spark plug.
If removing more than one plug, place each plug in a tray marked with the corresponding cylinder number.
Installation Procedure