You don’t have to be a mechanic to know when something is wrong with your car. You drive it every day, which means you’ll notice when something is wrong based on how it feels or sounds. For instance, you may notice unusual sounds when you apply the brakes. There are a number of issues that can cause unusual brake noises, and depending on the type of noise you are hearing you might be able to troubleshoot or diagnose the problem before it gets any worse. If you hear any of these noises, visit a brake repair shop in Sacramento . 
Screeching
High-pitched noises, usually of the screeching or squealing variety, usually indicate that your brake pads are worn down and need to be replaced. Modern brake pads are equipped with wear indicators that emit a high-pitched squeal when the pad has worn down to the point where it needs to be changed. In rare cases, these noises can also indicate broken anti-rattle clips or worn-out brake pad insulation. In any case, have your brakes looked at as soon as you hear this noise.
Rattling
Brake rattle is most often heard when you let up off the pedal, and it usually sounds like someone shaking a can of spray paint. Although brake rattle can happen because of expansion of the brake pads due to heat, this rattle should not be consistent and should never occur while you have your foot on the brake pedal. Under either of these conditions, bring your car to a brake repair shop to make sure it’s not a more serious problem.
Grinding
You know that screeching sound you’ve been ignoring for the past three months? By now it’s probably a grinding sound, and that’s bad news for your brakes and your wallet. In most cases, this noise is heard when brake pads wear out completely and cause the steel backing of the worn-out pad to grind against the brake rotor. If you hear a grinding noise, get your car to an auto repair shop in Sacramento ASAP to avoid expensive repair costs.