What Are the Reasons for an Engine Sounding Particularly Noisy?

[ThomasFitz]

Engine sounding particularly noisy may be caused by aging or loose engine mounts, carbon deposits in the cylinders, excessively low coolant temperature, or inappropriate engine oil. Aging or loose engine mounts: Aged engine mounts harden, directly transmitting more engine vibrations into the cabin, making the engine sound noisy. In this case, the engine mounts need to be replaced at a repair shop. Carbon deposits in the cylinders: Prolonged engine operation can lead to significant carbon buildup, making the engine sound noisy. Therefore, it is necessary to regularly clean carbon deposits from the engine. Excessively low coolant temperature: If the coolant temperature is too low, the engine may sound noisy. It is advisable to promptly check the vehicle's coolant and determine if a replacement is needed. Inappropriate engine oil: Not changing the oil on schedule or using oil with excessively high viscosity can make the engine sound noisy. Conventional mineral oil should be changed every 5,000 kilometers. If the car has severe oil consumption issues, it is necessary to top up the oil in advance, ensuring the added oil type matches the original specifications.