The abnormal sound of the car often reflects some faults or faults of the car. If it can be found and eliminated in time, it can avoid the expansion of the fault and ensure the driving safety. On the contrary, it will bring great security risks. When it comes to driving danger, in addition to brake failure, throttle failure. The trouble on the wheels is very dangerous. How to judge the possible faults and hidden dangers from the abnormal noise on the wheel?

1、啪嗒响——轮胎扎了钉子或者碎石

1. Rattling - a nail or gravel in the tire

其响声是轮胎转一圈响一下，就像有个东西“啪嗒”“啪嗒”地敲打地面，随着车速的提高节奏加快。若是石块撬掉就行，若是钉子，在市内时如轮胎气压还可以，可直接把车开到维修店补胎。

The noise is that the tire makes a circle, just like something "PATA" and "PATA" knocking on the ground. With the increase of the speed, the rhythm speeds up. If it's a stone, just pry it off. If it's a nail, if the tire pressure is OK in the city, you can drive the car directly to the repair shop to repair the tire.

2、“刺啦”的金属摩擦声——刹车片太薄

2. The sound of metal friction: the brake pads are too thin

汽车的前轮刹车片一般都有电子的装置，后轮则没有，但大都有机械的报警片。当刹车盘磨太薄时，就会发出“刺啦”“刺啦”的金属摩擦声。不踩刹车时很轻微，踩刹车时声音会加重，很刺耳。这时您必须慢行去换刹车片了。

The front wheel brake pad of a car generally has an electronic device, while the rear wheel does not, but most of them have a mechanical alarm pad. When the brake disc is too thin, it will make a metal friction sound of "pricking" and "pricking". When you don't step on the brake, it's very slight. When you step on the brake, the sound will increase and it's very harsh. Now you have to go slowly to change the brake pads.

3、嗝噜——胎面不平

3. Hiccup - uneven tread

这种异响给人的感觉是轮胎好像一直碾压着什么东西似的“嗝噜”“嗝噜””的声音，并且常伴有方向盘摆震，忽左忽右的现象。出现这些情况更好更换轮胎（或轮辋），千万不要带病行车。

This kind of abnormal noise gives people the feeling that the tire seems to be rolling something all the time, and it is often accompanied by steering wheel shimmy, left and right. In these cases, it's better to change the tire (or rim) and never drive with diseases.

4、车轮轴承异响——嗡嗡

4. Abnormal noise of wheel bearing

其声音是一种“嗡嗡”的响声，随车速的增高声音也逐渐变大。怀疑那个轴承响，可以顶起车轮，按下面的图片说明检查。如确实是轮胎轴承响，建议尽快到维修厂检查更换，以免损坏车轴车体。

Its sound is a kind of "buzzing" sound, and the sound gradually increases with the increase of vehicle speed. If you suspect that the bearing is noisy, you can jack up the wheel and check it according to the picture below. If it is the tire bearing, it is recommended to check and replace it at the maintenance plant as soon as possible to avoid damaging the axle body.

5、胎压过高异响——胎噪变大

5. Abnormal noise caused by high tire pressure

一般的轿车胎压空载时前后应均为2.4bar左右，满载时前为2.6bar左右，后为2.7bar左右。每个车也有差异的，具体准确数值请看自己车的使用说明书。胎压太高，跑起来不光能听到胎噪很大，而且感觉好像悬架变硬了，颠地厉害，并且方向变轻发飘。

Generally, the tire pressure of a car should be about 2.4 bar before and after no-load, about 2.6 bar before and about 2.7 bar after full load. There are also differences for each car. Please refer to the user manual of your car for the exact value. The tire pressure is too high. You can not only hear the tire noise when you run, but also feel as if the suspension has hardened, bumped heavily, and the direction has become lighter.