2000 Isuzu Trooper. Left rear (driver side) is very hot VERY HOT !I took it apart and tried to press the piston back with a C clamp. It sticks out about 3/4 inch.Is that ok. Should I only replace the rotor and pads ?
the piston has to go back far enough to be flush with the caliper, you can't use a c-clamp on the rear calipers to get it back in place as the piston turns in instead of pushing in, not like the front calipers, go to autozone or any auto store and buy the special tool for rear calipers to be able to get the piston pushed back in properly.
you are able to desire to get a c clamp and use it to open the caliper (push the piston in) so it is going to greater healthful because of fact the recent brake pads are thicker than the previous ones. be careful letting brake fluid spill over out of the grasp cylinder. it is going to capture fire if it falls on the exhaust or something warm adequate.
I'm not really too familiar with Isuzus, but there's only so many ways to design a rear disc brake system. If you have a drum in hat style setup, where there's a set of parking brake shoes inside a drum shaped portion of the rotor, then the caliper piston should push in to the caliper pretty easily, until it is flush. But I suspect you may have a more traditional setup, where the parking brake mechanism is built into the caliper. If that's the case, then the piston can't just be pushed straight back into the caliper, and you may break something if you try too hard. If you have that type of system, then you have to turn the piston clockwise to get it to go back into the caliper. There's usually a pair of notches in the face of the piston to do this with. Special tools are available to fit into them, but I just use the tips of a needle-nosed pliers. As you twist the piston, it should pull itself back in.
