The car brake pedal does not work, the braking effect is not good

 Today this car in the normal driving time, this brake pedal is very hard, can not step on and brake effect is also very poor,


usually encounter this kind of problem ah, you go to the 4S shop repair, they will let you replace the brake fluid, replace the brake master pump, replace the brake sub-pump, and even this powerful unit and ABS pump are replaced, money spent a lot of problems or not solved, we do not worry, I will tell you in the end In fact, the brake is hard is a powerful unit above this tube, connected to the engine here this one-way valve blocked, this one-way valve blocked after the brake system can not get the engine vacuum boost, so the pedal stepped on very hard, the brake effect will be poor, we just need to go to the auto parts city, spend 20 yuan to replace this one-way valve,

the problem can be completely solved, is not very simple, every day Learn car repair knowledge, you can also do your own car repair

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