What Causes the Squeaking Sound When Pressing the Accelerator in a Vehicle?

[DiRebecca]

The causes of a squeaking sound when pressing the accelerator in a vehicle are: 1. Aging accelerator cable; 2. Mechanical wear between the accelerator pedal components; 3. Increased free play in the vehicle's mechanisms; 4. Clutch wear. The functions of the accelerator are: 1. Controlling the engine's speed by adjusting the pedal pressure; 2. Regulating the carburetor to determine the engine's output power. The working principle of the accelerator is: When the accelerator pedal is pressed, it directly controls the throttle valve. The throttle valve opening increases, allowing more air to enter the engine. At this point, the ECU commands the fuel injection system to inject more fuel, thereby increasing the engine's RPM and enabling the vehicle to accelerate.