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Installation Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Spark Plug And Spark Plug Seat
    GM14824Courtesy of GENERAL MOTORS CORP.
    NOTE:

    The spark plug comes pre-gapped. Do not change the spark plug gap from 1.01 mm (0.040 in).

  1. Inspect the spark plug gap. Adjust the gap as needed. Refer to Ignition System Specifications .
  2. Hand start the spark plug in the corresponding cylinder.
    3. CAUTION:

    Refer to Fastener Caution .

  3. Tighten the spark plug to 15 N.m (11 lb ft).
    4. Fig 2: Spark Plug Wires
    GM1707125Courtesy of GENERAL MOTORS CORP.
  4. Install the spark plug wire to the spark plug.
  5. Inspect the spark plug wire for proper installation:
    1. Push sideways on each boot in order to inspect the seating.
    2. Reinstall any loose boot.
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