Why does an automatic transmission car experience jerking at low speeds?
2 Answers
There are three possible reasons for jerking sensations during low-speed driving in an automatic transmission car: 1. Carbon buildup: Excessive carbon deposits in the throttle body, fuel injectors, or intake manifold can cause various malfunctions, including jerking sensations. Regular carbon cleaning is recommended. 2. Fuel quality: Poor-quality fuel that doesn't burn completely. 3. Spark plug or ignition coil failure: Malfunctions in spark plugs or ignition coils can cause cylinder misfires. In such cases, it's necessary to visit a repair shop for inspection and timely maintenance to prevent potential safety hazards.
I usually enjoy tinkering with my car, and the jerking sensation at low speeds is quite a headache. The cause might be due to the torque converter not functioning smoothly because of aged or insufficient transmission fluid. Deteriorated fluid can make the shifting process less smooth, and combined with worn clutch plates or miscalculations by the computer control module, it can easily lead to shaking during deceleration or acceleration. Driving habits also play a big role—frequent sudden acceleration can raise fluid temperatures and worsen the problem. I recommend checking the transmission fluid level and color yourself first. If it’s dark, don’t delay replacing it to avoid damaging the entire transmission system. If the issue persists, take it to a professional shop for a computer diagnosis to ensure driving safety and stable vehicle condition.
