Will There Be a Jerking Sensation When Accelerating and Decelerating at Low Speeds?

2 Answers
Steve
07/29/25 8:34am
There is a jerking sensation when accelerating and decelerating at low speeds. Below are detailed explanations: 1. Reasons: Clean engine carbon deposits, check the oxygen sensor, and regularly replace the three filters. 2. Content: When driving at low speeds, the jerking sensation is noticeable during acceleration and deceleration. Cleaning engine carbon deposits is essential; excessive carbon buildup can be addressed by adding a certain amount of cleaner during refueling and driving at high speeds for a period, which helps increase exhaust flow and carry away carbon particles. Checking the oxygen sensor is crucial as it monitors the air-fuel ratio in the engine. A damaged oxygen sensor can disrupt the air-fuel ratio, leading to a sudden increase in fuel consumption. If the oxygen sensor is faulty, the vehicle will emit darker exhaust gases from the tailpipe during driving, indicating the need for replacement.
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StephenFitz
08/11/25 6:07pm
I've driven quite a few cars, and there's indeed a noticeable jerkiness during low-speed acceleration or deceleration, which can be quite annoying. My old car used to behave like that during start-up or in traffic jams, feeling like it was shuddering or sometimes even as if it suddenly got stuck. I asked a friend at the repair shop, and he said this is often caused by the automatic transmission not shifting smoothly at low speeds, such as due to dirty transmission fluid or valve body issues. It could also be carbon buildup on the throttle body, affecting airflow and making the engine response unstable. Additionally, delays in the electronic throttle sensor can cause sluggish reactions when pressing the accelerator. When encountering this issue, I usually first check the color of the transmission fluid—if it's black, it's time for a change. Alternatively, I might clean the throttle body myself using some specialized cleaner. Driving smoothly and avoiding sudden acceleration can help mitigate the problem, but if it gets severe, it's best to consult a professional mechanic.
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