What causes the car to jerk when releasing the accelerator pedal?

[GageLee]

The reasons for the jerking sensation when releasing the accelerator pedal are transmission abnormalities, insufficient transmission fluid, or fluid deterioration. Below are detailed explanations: 1. How the accelerator works: When the accelerator pedal is pressed, it directly controls the throttle valve. The throttle opening increases, allowing more air to enter the engine. At this point, the ECU commands the fuel injection system to inject more fuel, causing the engine speed to rise and the car to accelerate. 2. Precautions when using the accelerator: Press and release the accelerator pedal gently, ensuring smooth operation. The clutch release should be closely coordinated with accelerator pedal operation, requiring agile movements. Select appropriate gears to keep the engine running at medium speeds with larger throttle openings most of the time for fuel efficiency. Before stopping or turning off the engine, always release the accelerator pedal first and avoid suddenly revving the engine in neutral.