GM Service Manual Online
For 1990-2009 cars only
    • Inspect the spark plug wires for the following conditions:
       - A bent or a broken terminal
       - Corrosion or moisture contamination
       - Loose or poorly fitting terminals
       - Boots for cracks or punctures
       - Boots for carbon tracking
       - Cable and boot for abnormal swelling or stiffness
       - Cable for damage
   • 
Object Number: 709545  Size: SH
  • Measure the electrical resistance of the spark plug wire (2) with a DMM (1). Resistance must not be more than 4-10k ohm/m (1.2-3.0k ohm/ft).
  •    • 
  • Replace any spark plug wire that fails an inspection or a test.