What causes the engine to make a chugging sound and lose power?

[DelNora]

The reasons for the engine making a chugging sound and losing power are as follows: 1. Aging or loosening of engine mounts: Engine mounts are rubber blocks placed between the engine and the frame. Their purpose is to reduce vibration and cushion the engine's operation, as well as to secure the engine in place. Once these mounts age or loosen, the engine will shake, and the faster the speed, the louder the shaking sound. 2. Improper use of engine oil: If the viscosity of the engine oil does not match the engine's requirements, it can easily lead to carbon buildup, causing the engine noise to increase. For example, if the oil viscosity is too low, it will result in insufficient lubrication, wearing engine parts and causing abnormal noises; if the oil viscosity is too high, it will put excessive load on the engine, also generating noise. 3. Engine misfire: Engine misfire mainly refers to one or more cylinders in the engine not working properly, usually manifested as: the exhaust gas flow from the car has obvious intermittency, the exhaust pipe shakes violently, and the engine's 'chugging' or thumping sound can be clearly heard.