Removal Procedure
- Remove the engine cover. Refer to Engine Cover Replacement .
- If the left side spark plugs are being serviced, remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement (L99, LS3) Air Cleaner Assembly Replacement (LSA) .
- Remove the spark plug wires. Refer to Spark Plug Wire Replacement (Except LS7) .
- Loosen each spark plug 1 or 2 turns.
- Use a brush, or use compressed air in order to remove any dirt from the spark plugs.
- Remove the spark plugs one at a time and place each plug in a tray marked with the corresponding cylinder numbers.