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Home >> Chevrolet >> 2011 >> Caprice >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 6.0L - Repair Instructions >> Repair Instructions >> Spark Plug Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Locating Spark Plug Gap
    GM1950749Courtesy 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 each spark plug gap. Adjust each plug as needed. Refer to Ignition System Specifications .
  2. Hand start the spark plugs in the corresponding cylinders.
    3. CAUTION:

    Refer to Fastener Caution .

  3. Tighten the spark plugs. Tighten the engine spark plug on a NEW cylinder head to 20 N.m (15 lb ft)and the engine spark plug on subsequent installations to 15 N.m (11 lb ft).
  4. Install the spark plug wires. Refer to Spark Plug Wire Replacement .
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