What Causes Difficulty in Shifting a Manual Transmission?

[LenaLee]

Manual transmission shifting difficulty can be caused by: 1. Gear oil being too dirty or too thick; 2. Incomplete clutch disengagement; 3. Excessive clearance in the shifting mechanism; 4. Worn transmission synchronizer; 5. Stuck selector lever lock pin. The manual transmission is primarily used to alter the speed and torque transmitted from the engine to the drive wheels, enabling the vehicle to achieve different traction forces and speeds under various operating conditions. A manual transmission is a gear-shifting device that modifies the engine's transmitted speed and torque to the drive wheels, allowing the vehicle to obtain varying traction forces and speeds during scenarios such as starting from a standstill, climbing hills, turning corners, and accelerating, while also ensuring the engine operates within a more favorable range of working conditions.