Spark Plug Wires: Inspection
WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
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 correct routing of the spark plug wires. Improper routing may cause cross-firing. Inspect each wire for any signs of cracks or splits in the wire. Inspect each boot for the following conditions:
- Tearing.
- Piercing.
- Arcing.
- Carbon tracking.
- Corroded terminal.
If corrosion, carbon tracking, or arcing are indicated on a spark plug wire boot or terminal, both the wire and the component connected to the wire should be replaced.