Can the brake booster cause the brake pedal to go to the floor? Also when the engine is turned on, a hissing noise comes from the booster especially when the brake pedal
When I press the brakes in a car, there is a sort of hissing, almost compressed air sound coming from the brake pedal. What causes that? - Quora
When I press the brakes in a car, there is a sort of hissing, almost compressed air sound coming from the brake pedal. What causes that? - Quora
![Does the power brake booster make a hissing or bearing noise until appling brakes which changes the pitch of noise? Does the power brake booster make a hissing or bearing noise until appling brakes which changes the pitch of noise?](https://www.justanswer.com/uploads/ebrock63/2009-07-14_203252_2009-07-14_142710.png)