How Often Should Ignition Wires Be Replaced?

[OThomas]

Ignition wires generally need to be replaced every 40,000 kilometers or so. Below are detailed explanations about ignition wires: 1. Function: Ignition wires serve as the medium through which the ignition coil transfers energy to the spark plugs. When symptoms such as engine shaking or jerking occur, it is essential to inspect the ignition wires and replace them if necessary. 2. Composition: Automotive ignition wires, commonly referred to as spark plug wires, transmit the high-voltage spark from the distributor to the spark plugs, enabling ignition and combustion in the cylinders to drive the engine. Ignition wires are primarily composed of four parts: first, the conductive material; second, the insulating rubber; third, the ignition coil connector; and fourth, the spark plug connector. Some ignition wires are also wrapped with a layer of heat-resistant material to prevent them from being damaged by heat.