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Removal Procedure

Remove the spark plug wires. Refer to Spark Plug Wire Replacement .

Fig 1: View Of Spark Plug And Sparkplug Seat

Courtesy of GENERAL MOTORS CORP.

Loosen each spark plug 1 or 2 turns.
Brush or air blast away any dirt from around the spark plugs.
Remove the spark plugs 1 at a time. Place each plug in a tray marked with the corresponding cylinder numbers.