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Home >> Cadillac >> 2016 >> CTS V >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 6.2L (LT4) - Repair Instructions >> Repair Instructions >> Spark Plug Replacement >> Installation Procedure
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Installation Procedure

  1. If reusing the spark plugs. Refer to Spark Plug Inspection 
    Fig 1: Spark Plugs
    GM3397282Courtesy of GENERAL MOTORS COMPANY
  2. If using NEW spark plugs do not attempt to check gap or damage can occur, plugs come pre gapped.
  3. Tighten the spark plugs to 20 N.m (15 lb ft).
  4. Install the spark plug wires onto the spark plugs. Refer to Spark Plug Wire Replacement .
  5. If replacing bank 2 spark plugs, install the radiator surge tank. Refer to Radiator Surge Tank Replacement (LT4) .
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