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
![Someone please help, I have taken my car to two different shops and we still don't know why my brakes are making a hissing noise. : r/StupidCarQuestions Someone please help, I have taken my car to two different shops and we still don't know why my brakes are making a hissing noise. : r/StupidCarQuestions](https://external-preview.redd.it/someone-please-help-i-have-taken-my-car-to-two-different-v0-_2A42xnNZufyEH80jup2du6__QOY-C2xb55yqRA3EJ8.png?format=pjpg&auto=webp&s=b7d726cd2350f29e5ee3f841a6c042d858ea6159)
Someone please help, I have taken my car to two different shops and we still don't know why my brakes are making a hissing noise. : r/StupidCarQuestions
![My brakes is making a hissing sound (like air coming free) when I brake but it isn't affecting the brakes, what could it be? Could it be a leak maybe? : r/Cartalk My brakes is making a hissing sound (like air coming free) when I brake but it isn't affecting the brakes, what could it be? Could it be a leak maybe? : r/Cartalk](https://preview.redd.it/6z6dnd7n8j141.jpg?auto=webp&s=c46c6ba65c03943e21c511aa72916a59ca256259)
My brakes is making a hissing sound (like air coming free) when I brake but it isn't affecting the brakes, what could it be? Could it be a leak maybe? : r/Cartalk
![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](https://qph.cf2.quoracdn.net/main-qimg-6096b853802628742a66ed605a6f4a80.webp)