What causes the whistle to loosen and disappear when stepping on the gas pedal?

Everyone is concerned about "what is the reason why the whistle loosens and disappears when stepping on the gas pedal?" Let me explain something to you:

The reasons for the whistle loosening and disappearing when stepping on the accelerator are: 1, air leakage in the intake pipe: high-speed airflow will blow out directly from the gap, which will not only produce whistle sound but also weaken the power of the vehicle; 2, the valve clearance is too large: the valve is the throttle of the vehicle, because it is often opened and closed, the wear will be more serious; 3, the belt is too loose: At present, most cars use rubber belts, which will age and loosen after a long time. When the belt stretching starts, there will be obvious whistle. Automobile throttle, also known as "throttle" and "throttle", refers to the control device that controls engine power (thrust). On the piston aero-engine, the throttle valve controls the opening of the carburetor to control the filling amount of the cylinder, thus determining the output power of the engine.