What Causes a Manual Transmission Car to Start but Not Engage Any Gear?

[StEmmanuel]

Manual transmission car starts but cannot engage any gear due to incomplete or failed clutch disengagement, requiring inspection of the clutch system. Incomplete Clutch Disengagement: As a wear-prone component, the clutch may experience issues such as aging clutch plates or worn release bearings during prolonged use, leading to difficult gear engagement or even complete failure to engage gears. Timely replacement of the clutch kit (three-piece set) is necessary. Function of the Clutch: The clutch enables gradual connection between the engine and transmission to ensure smooth vehicle starting, temporarily disconnects the engine from the transmission for easier gear shifting and reduced shifting impact, and provides separation during emergency braking to prevent overload of the transmission and other drivetrain components, offering protective functions.