Silverado Classic 1500 2WD V6-4.3L (2007)
Spark Plug: Service and Repair
SPARK PLUG REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the spark plug wire from the spark plug.
1. Twist the boot 1/2 turn before removing the boot.
2. Pull only on the boot or use a tool designed for this purpose in order to remove the wire from the spark plug.
2. Loosen the spark plug 1 or 2 turns.
3. Brush or air blast away any dirt from around the spark plug.
4. Remove the spark plug. If removing more than 1 plug, place each plug in a tray marked with the corresponding cylinder number.
INSTALLATION PROCEDURE