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Home >> GMC >> 2001 >> C3500 HD 8.1 G, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 8.1L - Repair Instructions >> Repair Instructions >> Spark Plug Wire Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: View Of Spark Plug Wire
    GM470666Courtesy of GENERAL MOTORS COMPANY
  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.
    • Install any loose boot.