Question about 2000 Buick LeSabre
If you are having trouble retracting the caliper, push and turn on face of piston with pliers (rotate Clockwise) this retractes the piston thus allowing the pads to fit on the calipers. The piston does not retract on its own because of the automatic adjusting brakes.
Posted on Aug 27, 2008
If I were changing the rotors it is a good idea to change the pads at the same time. New pads are flat and achieve a close even fit with the new rotor friction surface; worn pads take on the wear profile of the old rotor reducing their braking effectiveness for some time on new rotors. In the event a caliper has seized and caused the rotor to become damaged due to warping then obviously it is essential that the caliper is changed along with the rotor. Generally pads are changed much more frequently than rotors and these in turn very much more frequently than calipers; which often last the lifetime of the car. Sometimes a caliper needs to be changed if for example the brake fluid bleed screw shears off due to corrosion. If the rotor and pads are still in good health then there is no compelling safety or mechanical reason to change them.
Posted on Jun 24, 2010
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