What Causes the Mismatch Between Vehicle Speed and Gear?

[EliMarie]

The reasons for the mismatch between vehicle speed and gear are as follows: 1. Slow clutch pedal operation: When the speedometer reaches the shifting speed, due to lack of proficiency, the driver may press the accelerator and clutch pedal slowly, causing the speed to drop. At this point, the speed has already fallen below the shifting speed, resulting in vehicle shaking and a mismatch between speed and gear. Some drivers monitor the tachometer; when releasing the clutch, if the engine speed does not match the current vehicle speed—meaning there is a speed difference between the engine and clutch plate—it often results in the engine speed being lower than the clutch plate speed. This creates a jerky shifting sensation, indicating a mismatch between speed and gear during shifting. 2. Not reaching the shifting speed: Shifting before the vehicle reaches the appropriate shifting speed will inevitably lead to a mismatch between speed and gear.