Why Does the Car Jerk When Accelerating at Low Speeds?

[DiClayton]

The reasons why a car jerks when accelerating at low speeds are: 1. Excessive carbon deposits on the throttle, fuel injectors, or intake manifold. It is recommended to regularly clean carbon deposits; 2. Poor fuel quality leading to incomplete combustion; 3. Faulty spark plugs or ignition coils causing cylinder misfires, which require inspection and repair at a service center to avoid further safety hazards. For manual transmission models, jerking occurs when accelerating or decelerating while driving in a semi-clutch state. The deeper the throttle is pressed, the more pronounced the jerking sensation. For automatic transmission models, there is a slight jerking sensation when accelerating and upshifting, and the sensation is more noticeable when forcefully downshifting with a heavy throttle and then upshifting.