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Home >> Hummer >> 2005 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Introduction >> Repair Instructions >> Spark Plug Wire Replacement >> Removal Procedure
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Removal Procedure

    Fig 1: View Of Spark Plug Wire & Boot
    GM343699Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the spark plug wire at each spark plug.
    • Twist each spark plug 1/2 turn.
    • Pull only on the boot in order to remove the wire from each spark plug.
  2. Disconnect the spark plug wire from the ignition coil.
    • Twist each spark plug boot 1/2 turn.
    • Pull only on the boot in order to remove the wires from the ignition coil.
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