What is the resonant hum in the cab of the car?

The reasons for the resonant buzzing in the cab of the car are: 1, and the sound may be caused by the resonance of the engine pad;

2. It may also be the sound produced by the front of the engine, generator bearing, pump bearing or compressor bearing;

I suggest you go to the repair shop to have a check. If it is not the sound of the bearing, it is the aging of the engine foot pad that resonates and needs to be replaced.

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