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Installation Procedure

    Fig 1: Spark Plugs
    GM2223431Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    CAUTION:

    Do not coat spark plug threads with anti-seize compound. If anti-seize compound is used and spark plugs are over-torqued, damage to the cylinder head threads may result.

  1. Install the spark plugs (1).

    Specification 

    The spark plug gap is 1.0 mm (0.040 in).

    Tighten 

    Tighten the plugs to 20 N.m (15 lb ft).

  2. Install the ignition coil(s). Refer to Ignition Coil Replacement .