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Home › Hummer › 2009 › H3 Alpha › Repair and Diagnosis › Engine Performance › System › Engine Controls And Fuel - 5.3L - Introduction › Repair Instructions › Spark Plug Replacement › Removal Procedure

Removal Procedure

    Fig 1: View Of Spark Plug And Spark Plug Seat
    GM14824Courtesy of GENERAL MOTORS CORP.
  1. Remove the spark plug wire. Refer to Spark Plug Wire Replacement .
  2. Loosen the spark plug 1-2 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 number.

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