What Causes the Zizzing Sound When Pressing the Accelerator?
1 Answers
The reasons for the zizzing sound when pressing the accelerator are: it may be the sound from the fuel pump or related components, or the clutch release bearing might be damaged. It is necessary to check whether there is any air leakage in the engine's intake pipe, whether the air filter is properly installed, to identify where the sound is coming from, and whether the engine belt is aged, loose, or slipping. Precautions when pressing the accelerator include: 1. Press and release the accelerator pedal gently and smoothly; 2. Releasing the clutch should be closely coordinated with pressing the accelerator, with swift movements; 3. Select an appropriate gear to ensure the engine operates mostly at medium speed and with a larger throttle opening to save fuel; 4. Before the car moves or is turned off, the accelerator pedal should be released first, and avoid revving the engine abruptly.