What is the reason why the brake pedal of the LaCrosse cannot be pressed down when starting?
1 Answers
The reasons why the brake pedal of the LaCrosse cannot be pressed down when starting are as follows: Failure of the vacuum booster pump: If the vacuum booster pump is damaged, it will cause the brake pedal to become very heavy and difficult to press down. The damaged vacuum booster pump needs to be replaced immediately, otherwise it will affect the normal operation of the braking system. The braking system is a very important system in a car, as it is related to the driving stability and safety of the vehicle. Too many impurities in the master cylinder: Excessive impurities in the brake master cylinder, poor sealing, failure of the vacuum booster pump, or dirty brake fluid. Air leakage at the pipeline interface: Air resistance caused by mixing brake fluid and heating, leakage of the brake master cylinder or wheel cylinder, or air leakage at the air reservoir or pipeline interface.