Why do cars lose their brakes?

Lack of maintenance of the braking system, too much impurities in the brake master cylinder. The vehicle is overloaded, resulting in brake failure. Improper operation leads to mechanical failure, such as long downhill on the brake. Brake pedal free travel or brake clearance is too large, the brake shoe friction plate contact is poor, serious wear or oil. More related information is as follows: 1. automobile brake failure fault performance, automobile brake pedal stroke is too large, braking effect is slow, braking efficiency is very low or even lost, braking distance growth. When you step on the brake pedal, not soft and heavy, but is the braking effect is poor, this phenomenon for the wheel brake failure, such as brake shoe oil or poor contact, friction plate aging, wear, uneven wear of the brake drum. At this point should be checked brake technology, if necessary, adjustment and repair. 2. in the ordinary road brake failure, should control the direction, and the transmission into first gear, and pay attention to observation, if there are conditions, should change lanes around the obstacles in front of you. If there are no conditions, do not force lane change. In the first gear, if you find the car speed or not enough, you can continuously pull the hand brake to further reduce the speed.