Buy or rent the tool that is required to screw the piston into the caliper. Germanautoparts.com sells them. FLAPS (checker, schucks, kragen) may have them to rent.
How do you get the brake piston to retreat back in caliper ?
screw it in turn the piston clockwise and screw it in , only for rear brakes
The piston is forced out of the caliper by the pressure of the brake fluid. This pushes the brake pads against the rotor, in turn stopping the vehicle.
I have heard that turning the piston clockwise can help to depress it. do not use a c-clamp on rear calipers as this will crush the worm gear
If the parking brake is connected to the caliper then the piston is threaded and a special tool (not expensive) is required to spin the piston in to the caliper body. Tool is available at Sears or auto parts If parking brake not connected-you should be able to compress piston with a "C" clamp As well if you are referring to the rear pads of course, you can get a pair of needle nose pliers, put 1 end in each groove, and rotate clock-wise to depress the piston, there is always a way around "special" tools, good luck to you
First make sure the parking brake is OFF, then remove the caliper and use a C-clamp to SLOWLY depress the piston until it is flush with the caliper surface. Second, on some vehicles however you may need a special tool to turn the piston to depress it. Third, consult a repair manual as the procedure may be different still.
replace front brake pads
Phenolic is a composite material and is used to reduce the transfer of heat from the brake pads to the brake fluid via the piston.
Remove wheels Remove caliper mounting bolts Slide caliper off rotor Rotor should slide off hub a special tool (not expensive available at Sears or auto parts) is required to fully depress piston into caliper body (piston is threaded) After piston is fully seated in caliper body Replace inner and out brake pads and re-install caliper PUMP BRAKE PEDAL TO SET PADS AGAINST ROTOR PRIOR TO MOVING VEHICLE
Crecent Wrench
Go to the Dealer!!!
use a C clamp