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Home >> Cadillac >> 2003 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 640 (Engine Controls - 5.7L - Introduction) >> Repair Instructions >> Spark Plug Wire Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Spark Plug Wire Routing
    GM74069Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the spark plug wires at each spark plug:
    • Twist each spark plug boot 1/2 turn.
    • Pull only on the boot in order to remove the wire from each spark plug.
  2. Disconnect the spark plug wires from the ignition coil:
    • Twist each spark plug boot 1/2 turn.
    • Pull only on the boot in order to remove the wires from the ignition coil.