How to Turn on the Air Conditioning in a Manual Transmission Car?
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Transmission housing and bearing seat holes experience long-term wear and deformation. This noise is most pronounced when shifting into low gears and gradually decreases as higher gears are engaged. This causes impact during the meshing process. When shifting into this gear, strong impacts and vibrations occur, leading to resonance in the transmission housing. Improper replacement of gears, needle bearings, or bushings in a specific gear of the transmission, along with abnormal assembly clearances, can result in poor gear meshing and abnormal noise during operation in that gear. If the car is shifted into Park (P) before coming to a complete stop, the P-lock hook inside the transmission will strike the gear, producing a clunking sound.