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Home >> GMC >> 2004 >> Sierra 2500, 4D Pickup, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 4.8L, 5.3L, & 6.0L (Introduction) >> Repair Instructions >> Spark Plug Wire Replacement >> Installation Procedure

Installation Procedure

  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. Fig 1: Spark Plug Wire
    GM1239288Courtesy of GENERAL MOTORS CORP.
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