Why does the car shake when accelerating?

[AdrianaLee]

The reasons why the car shakes when accelerating are: 1. Clogged fuel lines, causing poor fuel supply; 2. Air intake system leaks or blockages; 3. Damaged ignition coils or spark plugs; 4. Excessive carbon buildup in the throttle body; 5. Faulty fuel injectors; 6. Clogged fuel filter. The functions of the accelerator are: 1. Controlling the engine speed by adjusting the pedal pressure; 2. The accelerator regulates 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 body. 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.