Chances are when a brake caliper wont compress it is the type that must be turned and compressed at the same time and requires a special tool that you can borrow from a local chain auto parts like Auto Zone. That was the case on my 96 Buick Riveria rear disk brakes. Hope this helps.
some model's that have the parking brake Incorporated into the rear caliper, you must compress and turn the piston until the proper clearance is obtained.
Chevy came up with the brilliant idea of turn in calipers a number of years back. Check the inside of the caliper piston cup. If you see a square depression in the center, it is a turn or twist in caliper. DO NOT try to compress it. You'll damage the caliper and increase your brake job costs. Chances are when a brake caliper wont compress it is the type that must be turned and compressed at the same time and requires a special tool that you can borrow from a local chain auto parts like Auto Zone. That was the case on my 96 Buick Riveria rear disk brakes.
Replace the caliper and bleed the brake system.
If the emergency brake is not connected to the caliper use a "c" Clamp If the emergency brake is connected to that caliper a special tool (not expensive available at Sears or auto parts) is needed Caliper is threaded. Turn Clockwise to compress
If the emergency brake is not connected to the caliper use a "c" Clamp If the emergency brake is connected to that caliper a special tool (not expensive available at Sears or auto parts) is needed Caliper is threaded. Turn Clockwise to compress
It requires a special tool to turn and compress the piston in at the same time.
turn it in clockwise with a pair of needlenose
You need a caliper tool and a ratchet. Caliper tool is a cube with prongs on it, a couple dollars at a parts store or online. Just turn the caliper tool and on the caliper and it will compress.
on a mazda3 rear caliper there are two dimples in the piston, you can use needle nose pliers to turn the piston while you push on it, or you can rent a caliper compression tool from a local auto parts store, if there is a harbor freight in your area you can buy the tool for around $20. using a c clamp will damage the caliper, it has to have pressure and rotation to be compressed
You can use a large C-Clamp to compress the caliper piston.
I have used a large "C" clamp, to compress the caliper flush to the face.
to compress the caliper you need to buy a tool (its the only way) some sites say you can use long nose pliers but you need to have six hands any motor spare stockists will have one they say universal but its fine for the volvo to compress the caliper it has to turn as well has be pushed only needs to be used on the rear the front just push in hope this helps