Wheel bearings and rear axle noise abnormal sound resolution

Rear axle noise and tire noise resolution: tire noise is occurring with the road surface changes, rear axle noise is not. When the car's speed is below 48km / h, the rear axle noise disappeared, and tire noise continued existence. audi k04 turbocharger The car is moving and sliding noise of the tire is the same, but the noise of the rear axle is different.
     Wheel bearings and rear axle noise abnormal sound resolution: the car is moving and sliding, front wheel bearing noise constant, such as keeping the speed constant and slightly brake applied, can reduce some of the load bearing wheel load, which can weaken the noise can be found from where the noise source. When the speed is greater than 48km / h, unless severely damaged the rear axle, the rear wheels under normal circumstances bearing noise rarely heard, or when the vehicle is coasting in neutral, the crack on the rear wheel bearing will have a "rumbling" sound, and erosion rear wheel bearing is issued "rustling" sound.
     Reducer cone bearings and differential bearing abnormal sound initiative resolution: reducer bearings typically produce harsh "rumbling" sound or "quack" sound, voice steady beat, as the vehicle speed changes. Before driving gear reducer cone bearing sound when the vehicle is coasting larger rear bearing noise is greater when traveling.audi 1.8 turbocharger Noise differential bearing is usually a constant unpleasant sound, but its tact than the cone drive gear reducer bearing noise is much more moderate.
     Rear axle gear noise distinction: In normal driving straight, due to the differential side gears and planetary gear almost no relative motion, it can not hear the noise. Cars with the process, the rear axle gear occurrence of abnormal sound reasons mostly caused by poor lubrication, resulting in scar reducer gears grind, if at various sliding speeds abnormal sound can be heard, then by the reducer drive gear nut loosening caused. At low speeds, the rear axle parts occur percussion, acceleration or deceleration, the issue of special abnormal sound dull.

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