Have noticed that Ford still uses the screw style pistons on the rear calipers. To retract the piston use either a caliper/piston tool or a set of needle nose pliers. Turn the piston clockwise to get it back in but take note of the position of the grooves as they normally need to align so that a imaginary straight line through the grooves points to the center of the caliper.
if it is the caliper at the rear u need the special tool to turn the piston clockwise to push in and counterclockwise to pull out
You can find an inexpensive tool at your local auto parts. This works best.
You will need to push the caliper piston back as well as rotated when you are replacing your rear brake pads. The caliper will need to be turned clockwise.
be sure to purcahse the tool to "screw" the caliper piston in. If you try to push the piston in on rear disc brakes you will damange the caliper.
the caliper needs a special tool. the piston does not push straight in. the spring needs to be released at the rear of the caliper. then using the special tool the piston twists back in to place
Yes, you need to remove the caliper first, then use the old brake pad and a C clamp to push down the piston of the caliper.
---- You have to turn it (caliper piston) as you are depressing the piston back into the caliper. You can't just "jam" it in. I used a caliper tool (for depressing the caliper) and turned the piston with large jaw pliers. This gives both inward pressure and the turning motion. I turned it clockwise and that seemed to work. There is a special tool you can buy to turn the piston as you push it back into the body of the caliper but if you work carefully and you are VERY aware of the rubber boot (don't rip it) then pliers are ok (don't tell the Ford dealer). Cover the pliers with something so you don't scratch/ruin the piston. The front brakes are just a standard push - don't need to turn them. Why do the back brakes work this way? Has to do with the parking brake. If you look you can see that it is attached to the caliper on the rear.
They need to be wound back in, using a special tool, a G-clamp also work to push it back, with the rotating part on the caliper piston.
The rear piston has to be turned in, it won't just push in, they make a tool at the parts store that makes it easier, if you have tried turning it in and it won't go you will have to replace the caliper as it's bad.
AnswerSometimes if piston wont push back in try twisting it back in. Its on a 'staircase' pawl. Twist. push, twist, push etc.Use a 12mm (about 1/2inch) hex key to rotate the piston at center hole. no need to push, just rotate. Before rotation don't forget to let the handbake off, and brake fluid reservoir open.Check the piston gaskets and replace if needed (Ford Mondeo MK3 compatible), the set for the Ford Mondeo is about 11$ per caliper.
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Turn the piston clockwise and it scews itself in...