What causes the buzzing sound when stepping on the accelerator in MG6?

[BarrettFitz]

MG6 stepping on the accelerator with a buzzing sound may be due to the fuel pump or related components, or a faulty clutch release bearing. Causes of car abnormal noises: It is necessary to check whether there is air leakage in the engine's intake pipe, whether the air filter is installed properly, identify the source of the sound, and whether the engine belt is aging, loose, or slipping. The buzzing sound depends on where it occurs. On the right side of the engine, it is generally the generator belt; on the left, it is an issue with the throttle atmosphere. For the front wheel brake pads, the main reason is likely the brake caliper, with a small part being due to jamming. Solutions for accelerator abnormal noise: You can check the engine oil yourself. If the oil has not been changed for a long time or has deteriorated, these can increase friction between the cylinder valves and guides, as well as hydraulic lifters, leading to abnormal noises when accelerating. When the belt slips, it also produces a buzzing sound. Once the belt slips, it causes high friction temperatures, making the belt stretch longer, which worsens the slipping.