when i depress the brake pedal it makes a worn rubber noise.the car stops fine and makes no external noises.
brakes on 2000 Ford Mustang
Brakes are a safety item and should be checked if you have any doubts. You don't hear any metal to metal grinding sound or experience any performance problem. I have never heard the description "a worn rubber noise". I suspect the noise you hear is related to the brake booster which is operated by vacuum created by the engine to give you brake assist If the check valve or servo unit is developing a problem you can get a hissing noise. It is best to get it checked.