Why Does the Car Make a Buzzing Sound When Accelerating?

[DeJanelle]

Car makes a buzzing sound when accelerating possibly due to excessive carbon buildup. In addition to the buzzing sound during acceleration, excessive carbon deposits can cause: Engine shaking and unstable idle speed. Excessive carbon buildup in the engine, throttle, or spark plugs can lead to poor sealing of mechanical components, deteriorating engine condition, and potentially abnormal noises. Causes of excessive carbon buildup: Due to incomplete fuel combustion in the engine, residues can accumulate in the fuel injectors, throttle, fuel lines, spark plugs, etc., forming carbon deposits under high temperatures.