tried a clamp and pliers but it will not press in. How does it close in so the new pads will fit back over the rotor.
how to close the caliper so the pads will fit back over the rotor on 2006 Hyundai Tiburon
I guess you are working on the rear brakes, which requires a special tool to set the pistons. It's a "press and turn" tool, you can buy it at most parts store. The alignment of the pistons are also important. Better to get a repair manual and follow the instructions.