Is It Normal for the Engine to Shake a Little?

[Freddy]

Engine shaking is normal under normal working conditions, but this shaking should be relatively steady and regular. If you clearly feel increased or persistent shaking in the vehicle, then there is a problem that requires inspection and repair. The reasons for engine shaking are as follows: 1. Excessive carbon deposits: Excessive carbon buildup in the combustion chamber not only increases the compression ratio, creating high pressure, but also generates hot spots on the carbon deposits, causing the engine to shake. 2. Excessive intake air temperature: If the engine operates in an overly hot environment, leading to high intake air temperature, or if the engine coolant circulation is poor, it can cause engine overheating and detonation shaking. 3. Misfire issue: If the spark plugs are severely carbon-fouled or the electrodes are burnt, or if a single-cylinder high-voltage coil is damaged, or there is a wiring fault, then a cylinder may fail to fire, leading to a misfire issue, and the engine will shake severely.