
Reasons for jerking during hard acceleration include excessive carbon buildup in the throttle body, poor fuel quality, and differences between vehicle types. Detailed explanations of the causes: Excessive carbon buildup in the throttle body: Carbon deposits can cause various malfunctions. In some vehicles, jerking sensations are related to carbon buildup. Regular carbon cleaning is recommended. Poor fuel quality: Substandard or incompatible fuel quality leads to incomplete combustion. Different vehicle types: Manual transmission: When driving in a semi-clutch state, accelerating or decelerating can cause jerking sensations. The harder the accelerator is pressed, the more pronounced the jerking becomes. Automatic transmission: Slight jerking may occur during upshifting under acceleration, and it becomes more noticeable when forcefully downshifting and then upshifting with heavy throttle input.


