What are the causes of engine noise in the Peugeot 4008?

[AustinLee]

The cause of engine noise in the 4008 may be a damaged timing chain. Here is a detailed introduction about automobile engines: 1. Overview: The automobile engine is the device that provides power for the car, determining its power, economy, stability, and environmental friendliness. Depending on the power source, automobile engines can be divided into diesel engines, gasoline engines, electric vehicle motors, and hybrid power systems. 2. Others: Common gasoline and diesel engines are both reciprocating piston-type internal combustion engines, capable of converting the chemical energy of fuel into mechanical energy for piston movement and outputting power. Gasoline engines have high rotational speeds, are lightweight, produce less noise, are easy to start, and have lower manufacturing costs. Diesel engines have higher compression ratios, greater thermal efficiency, and better economic performance and emission performance than gasoline engines.