Why is it difficult to shift into first gear?

[IanMarie]

Reasons for difficulty in shifting into first gear: 1. Low vehicle temperature, transmission oil not fully lubricated. 2. Difficulty shifting into first gear while moving, speed and gear position mismatch. 3. First gear and reverse gear lack synchronizers. Method to test if first gear is faulty: It is recommended to attempt shifting into reverse gear when the vehicle is stationary. If the transmission makes a "clicking" gear collision sound during the reverse gear engagement process, it indicates that the vehicle's clutch is not fully disengaged. After repairing the clutch, the fault can be eliminated. If reverse gear engages smoothly but only first gear is difficult to shift into, it is recommended to visit a specialized repair shop to adjust the gear shift position and replace the transmission oil, which can also resolve the issue. For manual transmissions, shifting at low speeds requires the clutch to be able to fully disengage in order to smoothly engage the corresponding gear.