Ignition Cable: Testing and Inspection

Spark Plug Wire Inspection

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:

* Correct routing of the spark plug wires-Incorrect routing may cause cross-firing.
* Any signs of cracks or splits in the wires.
* 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 on a terminal, replace the wire and the component connected to the wire.