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2001 passat piston wont retract rear brakes . Iwas using a c clamp to retract it but it wont budge even though i open the bleeder valve. Will buying the tool that was talked about help to make it retract?
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Clockwise-on the rear
I would open the bleeder valve first, push piston in,then screw parking brake in.
You need to flush your brakes every couple years,anyway.
After you install new pads,ratchet brake up by hand.
If you have disk brakes, and you cannot fit the new brake pads in the callipers? Loosen the brake fluid reservoir cap to allow pressure to escape. Use a large C clamp connecting it to the front and back of the piston. Turn the screw on the clamp to compress the brake piston then release the clamp. The piston will remain compressed allowing you the fit the housing over the new brake pads.
As your car has a handbrake fitted to the rear calipers,you will need a piston wind in tool to retract the piston fully back into the caliper as when you adjust your handbrake the piston automatically winds itself to the required position for usage without this tool you are getting nowhere,so get hold of a tool to do the job and you should not have problem unless the piston has totally siezed on the screw then you will have a problem being the only way to repair would to be a new or refurbished caliper.
The rear brakes on the 2004 need to be compressed with a special tool available at any parts store. You need to "screw" the caliper piston in instead of pushing it in with the "C" clamp.
The rear caliper piston,turns in,with slight pressure on it,one side will turn right handed,to retract,and the other side will turn left handed to retract,the auto parts store sells the tool to do this with,it is a square tool,for sides,with different combinations of pins that will fit the caliper piston for your cadilac.The tool fits on a 3/8 ratchet,I hope this helps you,thank you.
usually with a special tool you can borrow at autozone. because the rear brakes are usually the parking brake. you have to screw them back in. if there is a cross pattern or some type of groove in the piston will confirm this.
on rear disc brakes the cylinder actually has to turn back in. careful not to damage cylinder use large pliers to turn it to the left (facing it) until it is far enough to replace the pads.
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