What Causes Engine Noise?

[LaHayden]

Engine noise can be caused by: 1. Worn or loose engine mounts, leading to vibrations and abnormal sounds; 2. One or more cylinders not functioning properly; 3. Poor lubrication conditions causing excessive wear between pistons and cylinder walls; 4. Improper timing gear clearance adjustment or hardened timing belts. It is not recommended to continue driving with engine noise as it may affect the engine's service life. Immediate inspection and repair are advised. An engine is a machine that converts other forms of energy into mechanical energy, including internal combustion engines, external combustion engines, jet engines, electric motors, etc. The term engine can refer to either the power generation device or the entire machine including the power unit.