Why is there noticeable jerking after changing the engine oil?

1 Answers
RachelAnn
07/30/25 12:56am
Noticeable jerking after changing the engine oil is due to issues with transmission calibration or potential internal engine faults. Transmission calibration issues: The main function of the transmission is to adjust the speed ratio between the engine and the wheels, expanding the range of speed variations to adapt to different driving conditions. Therefore, the transmission can reduce this jerking sensation to some extent, making power output smoother. Generally, the better the transmission and engine are matched, the less noticeable this jerking will be. Internal engine faults: For example, if components such as spark plugs or ignition coils inside the engine malfunction, it can lead to weak acceleration, severe shaking, and noticeable jerking while driving. Additionally, if the fuel pump becomes clogged or fails, fuel pressure will drop, preventing proper fuel atomization and combustion. This can cause carbon buildup in the engine, affecting its lifespan, and also result in weak acceleration and noticeable jerking during gear shifts.
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