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What Causes the Jerking Sensation When Shifting Gears in Park for an Automatic Transmission?

1 Answers

StGrace

07/29/25 12:37pm

Possible causes for the jerking sensation when shifting gears in park for an automatic transmission include: transmission clutch pressure leakage; obstructed transmission fluid passages; and transmission fluid not filled to the standard level. 1. Reasons for the jerking sensation when shifting gears in park for an automatic transmission: Internal clutch pressure leakage in the transmission. Check if the clutch is damaged. The transmission fluid passages are also obstructed. Wear on the valve body, long-term lack of transmission fluid changes leading to degradation and reduced lubrication effectiveness, a dirty transmission filter reducing filtration efficiency, allowing wear particles to enter the valve body. 2. Additional tips: Techniques to resolve gear shifting jerking: The key during gentle acceleration is to press the accelerator slowly, lift the foot lightly, and then press again. Automatic transmissions generally complete gear shifts at low RPMs, effectively addressing the issue of jerking during gear shifts.

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