Causes of abnormal noise of automobile rear wheel
1, the brake is mixed with tiny stones, resulting in abnormal friction during driving.
2. Abnormal bearing wear due to lack of oil or fatigue wear.
3. Brake pads are made of heavy metal, and there will be metal hard spots, which may cause abnormal noise during driving.
4. Due to the serious brake damage, the brake pads are metal, and there will be abnormal noise during operation.
If the brake plate is deformed, it will rub the rotating tire.
If the abnormal noise of the rear wheel of the car is sharp and persistent, it may be a problem with the braking system. Check whether there is any problem with the brake system, such as the brake pads are too thin, the brake discs and brake pads are unevenly worn, and the master cylinder, brake cylinder and caliper are out of order. You can lightly step on the brakes, and the abnormal sound of the rear wheel of the car will increase.
There must be something wrong with the brake system. The vehicle needs regular maintenance, otherwise the spring leaf will fall off and the movable pin of the brake caliper will be worn, which will also cause abnormal sound of the rear wheel. In this case, it is necessary to check whether the brake disc has grooves, that is, the abnormal sound of the rear wheel of the car is mainly caused by local friction.
automobile
China's latest national standard "Terms and definitions of automobile and trailer types" (GB/T3730. 1-200 1) defines automobiles as follows: powered vehicles with four or more wheels, mainly used for carrying people and goods; Towing vehicles carrying people and goods; Special purpose.