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Home › GMC › 2012 › Yukon Hybrid, RWD › Repair and Diagnosis › Engine Performance › Engine Control Systems › Engine Controls/Fuel - Hybrid (LZ1) - Repair Instructions › Repair Instructions › Spark Plug Wire Replacement › Installation Procedure

Installation Procedure

    Fig 1: View of Spark Plug Wires
    GM1707125Courtesy of GENERAL MOTORS COMPANY
  1. Install the spark plug wire to the ignition coil.
  2. Install the spark plug wire to the spark plug.
  3. 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.
  4. If the right side spark plug wire(s) was replaced, install the right front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement - Right Side .
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