Brake Whine?

[Zenon]

A strange rubbing-whine type noise is seemingly coming from my right rear brake area. It generally happens after I've been driving a while and you can hear it (pretty loud) at low speeds, pressing on the brake stops the noise until I let off again. Sometimes it seems that turning a corner starts it, although it could just be coincidence. Has anyone else experienced a problem like this, or have any idea what is causing it and how to fix it?

 

[SolidState]

yep...I think it is because my rotors are warped though.

 

[projectSHO89]

Warped rotors will cause a pulsation in the pedal when braking. Been there, done that on the wife's car and the old Explorer in the last week.

Inspect the caliper and rotor for abnormal wear patterns. Look at the dust shield and see if it is making contact with any of the rotating parts. Same for the ABS sensor, if present.

Steve

 

[WaterRooster]

I am gonna move this back up tot the top, cause I have it happening to me. I just changed the pads and greased up the pins. But every time I make a right hand turn, and it only has to be just a shift in the wheel, it will whine, like there is contact between the pads and the rotor. If I hold the wheel left, it doesnt happen. Any Idea on this one ?

 

[sdpatt]

You have to inspect the brake, caliper, rotor and hub to determine what is rubbing. I replaced my hub/bearings and found an interference between the rotor and caliper due to a different offset in the Timken hub and bearing set. It could be a bent dust shield that is rubbing on the rotor. It may also be binding slider pins causing the caliper not to retract fully.

If there is no other sign of contact, the pads may not be retracting from the rotor. If the piston had been pressded in rather than turned in during a previous brake job, the caliper may be damaged and causing this problem. A more common cause is torn rubber boots onthe slider pins that allows them to rust and bind. Ford sells a "caliper repair kit" for the rear calipers that includes two new slider pins and the boots.

The only way to find out what is causing the noise is to take the wheel and tire off and inspect the brake.

 

[WaterRooster]

Awsome, thanks spadtt