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Home >> Cadillac >> 2012 >> Escalade EXT >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls/Fuel - 5.3L, 6.0L, 6.2L - Repair Instructions >> Repair Instructions >> Spark Plug Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: View Of Spark Plug And Sparkplug Seat
    GM14824Courtesy of GENERAL MOTORS COMPANY
    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: View of Spark Plug Wires
    GM1707125Courtesy of GENERAL MOTORS COMPANY
  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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