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Home › Chevrolet › 2004 › Avalanche 2500 › Repair and Diagnosis › Engine Performance › System › Engine Control System - 8.1L (Introduction) › Repair Instructions › Spark Plug Replacement › Removal Procedure

Removal Procedure

    Fig 1: Removing Spark Plug
    GM858212Courtesy of GENERAL MOTORS CORP.
  1. Remove the spark plug wire. Refer to Spark Plug Wire Replacement .
  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.
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