Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Ignition Cable: Description and Operation

Ignition wires conduct high secondary voltage from the coil to the distributor and then to each spark plug in proper sequence (firing order). These wires are constructed with a carbon impregnated, multi-filament synthetic fiber core. To endure under hood temperatures, the core is surrounded by heat resistant rubber insulation. Built-in internal resistance (16K ohms per meter) functions to suppress radio static and eliminate interference with computerized components and sensors.