What Causes a Manual Transmission Car to Jerk Suddenly During Start-Up?

1 Answers
McGriffin
07/30/25 1:30am
Manual transmission cars may jerk suddenly during start-up due to damaged engine or transmission mounts, or a faulty clutch. How to Address Mount Damage: Damaged mounts can only be replaced. However, mount-related jerking has distinct characteristics—it primarily occurs during start-up or braking. Accurate diagnosis is crucial. Most mount damage involves detachment or cracking of the rubber components, which can be visually inspected or tested by prying to check the range of movement. That said, replacing mounts on certain car models can be a complex process. Causes of Clutch Damage: Under normal conditions, a manual transmission clutch lasts approximately 150,000–200,000 kilometers. Premature clutch failure is largely tied to driving habits and overloading.
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