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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
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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.
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