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What Causes Transmission Noise When Driving on Bumpy Roads?

1Answers
VanBennett
07/29/2025, 03:37:12 AM

Transmission noise when driving on bumpy roads can be caused by: 1. Worn or damaged bearings, which produce abnormal sounds during normal operation; 2. Loose bolts on the transmission housing; 3. Loose grooves in the shift 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 abnormal noise. The functions of a transmission are: 1. To change the gear ratio, expanding the range of torque and speed variations at the drive wheels to adapt to frequently changing driving conditions, while allowing the engine to operate under favorable conditions; 2. To enable the vehicle to reverse while maintaining the engine's rotation direction; 3. To use neutral gear to interrupt power transmission, allowing the engine to start, idle, and facilitate gear shifting or power output.

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