What causes the buzzing sound and resonance in the Honda CR-V?

[LaGabriel]

crv buzzing sound and resonance are caused by tensioner pulley wear and tensioner pulley wear. Details are as follows: Tensioner pulley wear: The function of the tensioner pulley is to tighten the engine belt, preventing the generator and power steering pump from slipping. Due to prolonged pressure and high-speed rotation, the bearings inside the tensioner pulley are prone to wear, resulting in noise and resonance. When it is confirmed that the buzzing sound and resonance are caused by the tensioner pulley, the engine mount should also be checked, as the engine mount helps reduce the vibration and noise generated by the engine. Tensioner pulley wear: In most front-engine vehicles, the exhaust pipe extends from the bottom of the car to the rear. When driving on rough roads or if the chassis is hit, the exhaust pipe can easily dent or deform. A deformed exhaust pipe increases exhaust resistance, leading to a buzzing sound and resonance.