What Causes Abnormal Noises in Manual Transmission Vehicles?

[McLogan]

Manual transmission vehicles may produce abnormal noises due to the following reasons: Gear Shifting Mechanism Noise: The gear shifting structure of a car consists of the gear lever, cables, gear selection and shifting mechanisms, shift forks, and synchronizers. The gear lever facilitates control over gear positions, engaging and disengaging gears. The cables are responsible for pulling the gear positions to enable shifting. The gear selection and shifting mechanisms distinguish between gear engagement or changes. The shift forks and synchronizers are tasked with engaging and disengaging the various gear cogs. The noise from these components is relatively minor. Transmission Noise: The internal control mechanisms of an automatic transmission are highly precise, with minimal clearance between components, including the clutch, differential, input shaft, output shaft, and various gears. Over time, transmission fluid can accumulate sludge, increasing wear on friction plates and other components. Wear on these parts can lead to malfunctions and result in abnormal noises.