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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
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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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