What to do when rear disc brakes stop working?

What to do when rear disc brakes stop working?

If you have rear disc brakes, there are two crucial things you will need to do to correct the problem. First is bleed the brakes the right way. Even if you have pulled 10 gallons of clear fluid through the rear calipers, you still have air!!

Why are the brake pads so close to the rotor?

With the brake pedal depressed, hydraulic pressure holds the brake pads tightly to the rotor. It takes a lot of pressure to hold them there, that is why disc brakes have power assist. Foot off the pedal and the pads barely touch the rotor.

Why do my brake calipers not retract?

With new rotors Inever had the problem again. Runout,jouncing,etc. can cause some calipers, more then others, to retract the pistons enough that the brake pedal will depress frieghteningly low before the brakes are applied if at all on the first brake application.

Why do disc brakes have a power assist?

It takes a lot of pressure to hold them there, that is why disc brakes have power assist. Foot off the pedal and the pads barely touch the rotor. If there is any wobble in the rotor, then the brake pads will separate a little further, but ideally there is always a little drag.

With the brake pedal depressed, hydraulic pressure holds the brake pads tightly to the rotor. It takes a lot of pressure to hold them there, that is why disc brakes have power assist. Foot off the pedal and the pads barely touch the rotor.

If you have rear disc brakes, there are two crucial things you will need to do to correct the problem. First is bleed the brakes the right way. Even if you have pulled 10 gallons of clear fluid through the rear calipers, you still have air!!

What causes brake drag on the master cylinder?

Master Cylinder: Brake drag can be caused by an incorrect brake pedal adjustment. This pedal adjustment is crucial and if adjusted too tightly the vent port of the master cylinder can become blocked. The building pressure in the system results in brake drag and possible brake lockup.

With new rotors Inever had the problem again. Runout,jouncing,etc. can cause some calipers, more then others, to retract the pistons enough that the brake pedal will depress frieghteningly low before the brakes are applied if at all on the first brake application.

Where does the low brake pedal come from?

In the next 5 minutes, you will have identified whether the issue causing your low pedal is in the front of your brake system or rear. Nearly every vehicle has a rubber hose at the center of the rear axle that attaches to a block on the rear end.

What is the break in procedure for PowerStop brakes?

The rotors will be very hot and holding down the brake pedal will allow the pad to create an imprint on the rotor. This is where the judder can originate from. Then do 5 mod­erate stops from 35 mph to 5 mph in rapid succession without letting the brakes cool. You should expect to smell some resin as the brakes get hot.

What should I expect from a brake break in?

You should expect to smell some resin as the brakes get hot. After this is complete, drive around for as long as possible without excessively heating the brakes and without coming to a complete stop (Try for about 5 minutes at moderate speed). This is the cooling stage. It allows the heated resin in the brake pads to cool and cure.