What is the reason for the abnormal sound of car wheels?

Causes of abnormal automobile wheels: the tread pattern is embedded with gravel or the shock absorber bearing is damaged. The higher the frequency of this periodic sound, the faster the vehicle speed. In this case, first check whether the tire screws are tightened to eliminate abnormal sound.

1. Rhythmic shrill voice. This may be the friction sound caused by the small gap between the brake shoe and the brake disc. 2. The continuous sharp sound may be that the bearing is broken. 3. The persistent dull noise may be the problem of the transmission shaft. 4. You can also know whether the sound changes during neutral and traction. If there is, it is probably a transmission shaft.

First, check whether the tire screws are tightened to eliminate abnormal sound. When the wheel hub screw is loose, lightly step on the brake when going downhill, and the wheel will make a slight knocking sound. If the rear wheel screws are loose, the noise of the wheels will be amplified through the trunk, which may be mistaken for something in the trunk. When the wheel hub screw is loose seriously, the wheel will swing back and forth when walking, and an obvious click will be heard at low speed. At this point, stop immediately to check the hub screw. If the sound of the tire is rhythmic, if the speed is high and the frequency is high, judge the reason according to the sound: if the sound is low, it is mostly tire tread deformation, bulging, serious wear or insufficient air pressure; If it is a "click" sound, it may be that the tread is mixed with pebbles; If the tire rings, the car body will obviously shake or even deviate from the direction. Needless to say, the tire must have burst. Get off and change the tire. If there is a metal collision sound inside the tire during driving, it may be caused by the damage of shock absorber and bearing, and the owner should go to a professional garage or 4S shop for maintenance.

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