What Are the Causes of Abnormal Noise in a Car Transmission?

1 Answers
StKyle
07/29/25 7:17pm
The causes of abnormal noise in a car transmission are: 1. Bearing wear and damage can produce abnormal sounds during normal operation; 2. Loose bolts on the transmission housing; 3. Loose grooves in the gear lever and shift fork of a manual transmission; 4. Failure to replace automatic transmission fluid for an extended period, leading to direct friction between components and causing abnormal noise. The functions of a transmission are: 1. To change the transmission ratio, expanding the range of torque and speed variation of the driving wheels to adapt to frequently changing driving conditions, while allowing the engine to operate under favorable conditions; 2. To enable the car to reverse while the engine's rotation direction remains unchanged; 3. To use neutral gear to interrupt power transmission, allowing the engine to start, idle, and facilitating gear shifting or power output in the transmission.
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