I'm trying to change the brake pads on the rear of my '96 STS and I can not get the piston pushed into the caliper, actually I can't get it to move at all. I've disconnected the brake line and removed the bleeder valve but nothing. The trouble is I can't get the old pads back on to take it to a mechanic. Any suggestion would be greatly appreciated.
on many cars the caliper pistons have to be screwed back maybe this is the case with your car...youll need a special tool to do this which youll get from your local autostore, failing this your piston could be seized...leave it to soak in WD40..and try later
Automobile(s): 2011 Kia Optima SX 2013 Kia Optima SXL
Re: Caliper Piston problems
As stated, rear calipers, need to be screwed back in. Do not use a c-clamp to try and press the piston in, as you would a front caliper. Yoy will damage the caliper. I did not buy the special tool when i did my brakes. A pair of needle nose pliers worked like a charm. Just put the plier tips into the recesses, and turn clockwise, as you are viewing the piston. It takes a little effort to get it to begin turning, but after it starts, it turns very easily. Hopefully you haven't damaged the caliper. Good luck.