Why is there a strong transmission jerking sensation?
2 Answers
Transmission jerking is a relatively common phenomenon. Here are the reasons that may cause jerking: 1. Transmission wear: Severe wear of internal friction plates leads to uneven surfaces, causing contact jerking. 2. Valve body wear: Severe wear of internal plungers in the valve body results in poor plunger movement. 3. Torque converter failure: The torque converter assembly undergoes processes such as cutting, inspection, cleaning, part replacement, welding, high-pressure leak testing, and balancing for remanufacturing to restore its working performance.
A strong transmission jerking sensation is quite common while driving, and I've encountered many similar cases. Usually, it's caused by transmission fluid issues—either insufficient or dirty fluid reduces lubrication, leading to rough gear shifts. For manual transmissions, severely worn clutch discs make the problem more noticeable. In automatic transmissions, the issue might stem from the valve body or electronic control system, such as faulty sensors causing inaccurate gear shifts. Once, while helping a friend repair their car, I discovered the fluid had turned black and degraded—replacing it significantly reduced the jerking. I recommend checking the fluid level and quality promptly to prevent worsening issues. Regular maintenance is crucial: changing the fluid around every 30,000 kilometers can extend transmission life and avoid major repairs. Drive gently in daily use, as sudden acceleration or braking increases component stress. Ignoring this issue not only wastes fuel but may also shorten engine lifespan and degrade overall performance.
