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Home >> GMC >> 2002 >> C3500 HD 8.1 G, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 8.1L >> Repair Instructions >> Spark Plug Wire Replacement >> Installation Procedure

Installation Procedure

  1. Install the spark plug wires at the ignition coil.
  2. Install the spark plug wire to each spark plug.
  3. Inspect the wires for proper installation:
    • Push sideways on each boot in order to inspect the seating.
    • Reinstall any loose boot.
    Fig 1: Spark Plug Wire & Boot
    G01599000Courtesy of GENERAL MOTORS CORP.