How to decompress my caliper piston?

i have a 203 svt cobra, i changed the front brakes already with no problem, i used a C clamp to decompress the pistons and everything was fine, so then i moved to the passenger rear barkes and i took it all apart and now im trying to decompress the piston but its not even budging or moving even a little bit, im still using the C clamp, please help i need to fix it cause i need to drive it.!!! please help thank you!!!!!How to decompress my caliper piston?Use the proper tool, open the bleeder and the proper tool and turn them back.How to decompress my caliper piston?try a bigger c clamp and if that does not work you will have to get a new caliper because the one you have is frozenHow to decompress my caliper piston?By design, the rear pistons need to turn while compressing. What you want to do is slide a small screw driver between the C clamp and piston, turn the piston while compressing. Also spray the piston with some Wd40 to make turning easier.



I start to see these rear calipers (that requires pistons be turned while compressing) in mid 90s and it seems like all cars now use this method. Not sure as what would be the design advantage. It may have something to do with sharing the caliper with the parking brake.How to decompress my caliper piston?Pump the brakes with it off if it wont move get a new one

Sounds like its frozenHow to decompress my caliper piston?open the bleeder then compress it and close bleeder when its all the way in. Never heard of turning pistons before. ??????

Think about it, how do they turn when all they do is go in and out.How to decompress my caliper piston?i know on my car i hav to losen the parking brake to compress it, bt its a chevy, i dont kno if ford did the same, try wut sang Sang saidHow to decompress my caliper piston?You may need to rotate the piston while compressing it due to use of parking break in the rear, a clear indicator of this would be a difference in the design of the piston that would accommodate a special tool for this procedure, refer to a service manual to be sure! %26quot;kerryjonjon%26quot; may have never heard of this before but should do a little reading before he posts, these type of rear disc break set ups have been around for a long timeHow to decompress my caliper piston?The reason is for parking brakes. Just get the proper tool and turn them in. They move out little by little and rotate themselves as they come out. And NEVER pump brakes with caliper off the rotor. That will push the piston out and then you have junk!How to decompress my caliper piston?on some cars with antilock brakes you should open the bleeder.usually the ones you turn have knotches in them. LISLE makes the tool and can purchase it at sears ,napa etc.also you might just try opening the master cylinder but be carefull so not to spill brake fluid on yourself our your car .also i would like to add I THOUGHT I could do a proper brake pad change until I seen one done by a good mechanicHow to decompress my caliper piston?loosen the bleeder and try using the c-clamp. after the piston is all the way in, tighten the bleeder.

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