Is Engine Compartment Wiring Harness Maintenance Necessary?

[JadeFitz]

Automobile engine wiring maintenance is necessary. Here are the relevant introductions: 1. Wiring harness aging: Common engine wiring harnesses are generally composed of multiple strands of copper wires, wrapped externally with plastic. During daily driving, the engine compartment temperature is very high. The plastic covering the wiring harness will release plasticizers and other chemicals when heated, which react with the internal copper wires, leading to reduced plastic strength, increased copper wire resistance, and ultimately causing the wiring harness to age and pose a short-circuit risk. Rubber hoses in the engine compartment belong to unsaturated polymer hydrocarbons, and aged rubber is also prone to oxidation, which can cause vehicle self-ignition. 2. Engine wiring oil contamination: Oil contamination on engine wiring significantly affects the engine's working quality and efficiency, leading to abnormal vibrations, increased noise, insufficient power, decreased fuel economy, and greatly shortened vehicle lifespan. Therefore, for older vehicles' engines and wiring, regular maintenance is even more essential to extend their service life as much as possible.