My car makes a very loud screaching noise when I brake, and sometimes even when I am not braking. The rotor on the rear driver's side tire is much hotter than the one on the right, and even hotter than the front ones. It doesn't happen until after braking a couple of times. I took the car to a shop I trust and they said it didn't do it on their test drive. I plan to take it to them and make the car make the sound. Does anyone have any insight as t what this could be?

TIA, Dave.

I just joined this group and i've been getting screaches in just braking. I think Dave's problem is caliber, because he gets them even when not braking. But regarding mine, I put in a second pair of new pads, it squeaks still but not as much. A guy at our part store in Chicago said to redo the rotors. My 850 has 220,000 miles! So, tonight, I'm going to take them off and get them done. I'll let you know...

Vince, Volvo rotors should not be turned. They should be
replaced. OEM pads are also less prone to squeeking.
www.volvoparts.com is a good source for the parts at a
good price.

The rotor also will have a lip on the outer edge. When new,
there is no lip. That lip is the amount of wear. The rotor
should also have the minimum allowable size stamped on its edge.

Thanks, Ray. I found that out after my posting so I ordered - there on their way - via FCP Groton Main Volvo. Hopefully, tonight or tomorrow, I'll have the new ones and no more squeak!

You have a sticking piston on that caliper. Sometimes you can press the piston/pad all the way back into the housing and then apply the brakes to push the piston back out again. Do this several times and if you are lucky the piston will free up. The BEST way to fix it is to replace the caliper assy.

Either the pads are badly rusted and barely moving as they should be able to (common in the salt belt) or the caliper has a sticking piston requiring a reman caliper.