Ignition Cable: Testing and Inspection

Spark Plug Cables




NOTE: Never puncture the spark plug cable's insulation with a needle or the pointed end of a probe into the cable. An increase in resistance would be created which would cause the cable to become defective.

1. If the cable has broken or cracked insulation, it must be replaced.
2. If the terminals are corroded or loose, the cable must be replaced.
3. Check that the cable resistance does not exceed 10 k ohms per foot.