RAM 2500 Truck 4WD V8-5.7L VIN D (2005)
Ignition Cable: Description and Operation
Spark plug cables are sometimes referred to as secondary ignition wires, or secondary ignition cables. Plug cables are used only on the 5.7L V-8 engine.
The spark plug cables transfer electrical current from the ignition coil(s) and/or distributor, to individual spark plugs at each cylinder. The resistive spark
plug cables are of nonmetallic construction. The cables provide suppression of radio frequency emissions from the ignition system.
