Does Your Brake Make Any Noises????

There are some things you can do to eliminate most or all of that annoyance.

BMW

It is so embarrassing when you brakes making so much noise you try to stop at the traffic light.It's not the braking part of the pad that is making the noise.The high-pitched sound you hear is the metal part of the brake pads that is vibrating.

After the pads get worn some they get loose, and vibrate.You can have them changed, or change them yourself.But, sometimes aftermarket pads are just not perfectly machined and will not fit the calipers snugly.

Sound silly?  Think about how many times that rotor is going around, even at 30mph.  The rotor is the round shiny disk that the brake pads rub against.Ever hear a wood-pecker when he is hunting a bug in a tree?
His quick and constant pecking sounds like a machine gun going off!

Pedal location in Subaru

That's about how fast, or faster, that your metal plate is slapping against the metal on the caliper. The caliper is the metal coconut looking thing that the brake pads fit into and connect to the rotor when you apply the brakes. Now, don't put any grease on the pad next to the rotor to keep it quite...it will be quite, but it won't STOP! ?

That's when the machine takes metal off to make it smooth.If the rotor is too warped, you should have it refinished.

How will you know it is warped?

When you put your foot on the brake petal and apply pressure to slow down or stop, does the petal go *up and down* in a pulsating motion? If yes, then the rotors are out of round and should be turned.  That, you can't do; unless you have a brake lathe!

Ref: http://EzineArticles.com/?expert=Tommy_Sessions