I need some advice. My drivers side brake caliper piston will = not release. The brakes stop the van, but afterward the caliper piston = remains tight. After driving down the road the wheel is hot.

I have removed the wheel, taken out the lower retaining bolt, and = with great difficulty pried up the housing. I removed the pads which = look to be about 1/2 worn. I then used a "C" clamp to push the piston back in = a ways, and then I reassembled it all. At that point the unit slides back = and forth on the guide pins as it should, so it is not binding there. = But after I applied the brakes I could, with a pipe = wrench, just barely turn the rotor.

Is this a caliper problem? Can they be rebuilt? I see = is Bentley that you can blow out the piston, but then what? Do you = hone the unit?