What Causes the Buzzing Resonance When Pressing the Throttle at Low Speed?
2 Answers
Reasons for buzzing resonance when pressing the throttle at low speed: 1. Insufficient oil lubrication: The engine oil has not fully lubricated all parts of the engine. It takes some time for new oil to evenly lubricate all components. 2. Severe wear: This can lead to poor filtration, with the most common cause being a dirty air filter. 3. Large gaps and poor sealing: The engine condition may deteriorate, and abnormal situations may occur. It is recommended to have it checked at a repair shop. Precautions when pressing the throttle: 1. When testing the throttle: Ensure the vehicle is in the off state. 2. When the right foot is not pressing the throttle: It must be placed on the brake pedal to avoid mistakenly pressing the throttle instead of the brake in an emergency. 3. Do not press the throttle and clutch simultaneously: This will increase machine wear and is also not conducive to gear shifting.
I encountered the same situation last time I drove. There was a buzzing resonance at low speeds when stepping on the accelerator, which was quite annoying. After checking some information, it's mostly caused by severe engine carbon buildup leading to unstable combustion, especially when the throttle is not fully engaged below 1500 RPM. Carbon deposits cause incomplete fuel combustion, making the engine vibrate intensely and produce a buzzing sound. Another possibility is a dirty air filter blocking the intake, causing poor airflow and triggering resonance. I recommend regularly cleaning the fuel injectors and spark plugs. Avoid idling for too long while driving and try to drive at higher speeds more often to clear carbon deposits and prevent resonance. Ignoring it may lead to increased fuel consumption or even engine damage. Remember to choose a reputable repair shop for a proper inspection to ensure peace of mind.
