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Home >> Pontiac >> 2009 >> G8 GXP, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 6.0L, 6.2L - Introduction >> Repair Instructions >> Spark Plug Wire Inspection

Spark Plug Wire Inspection

    IMPORTANT: Spark plug wire integrity is vital for proper engine operation. A thorough inspection will be necessary to accurately identify conditions that may affect engine operation. Inspect for the following conditions:
  1. Correct routing of the spark plug wires. Incorrect routing may cause cross-firing.
  2. Inspect for any signs of cracks or splits in the wires.
  3. Inspect each boot for the following conditions:
    • Tearing
    • Piercing
    • Arcing
    • Carbon tracking
    • Corroded terminals
  4. If corrosion, carbon tracking or arcing are indicated on a spark plug wire boot or on a terminal, replace the wire and the component connected to the wire.
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