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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 974 (Engine Controls - 8.1L (Introduction)) >> Repair Instructions >> Ignition Coil(s) Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the spark plug wire from the ignition coil.
    • Twist the spark plug boot 1/2 turn.
    • Pull only on the boot in order to remove the wire from the ignition coil.
    Fig 1: View Of Spark Plug Wire
    GM470666Courtesy of GENERAL MOTORS CORP.
  2. Disconnect the ignition coil electrical connector.
    3. Fig 2: Locating Ignition Coils
    GM470887Courtesy of GENERAL MOTORS CORP.
  3. Remove the ignition coil bolts.
  4. Remove the ignition coil.
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