Ok I had some noise in my front wheels caused by my brakes. The rotors were gouged and the brakes were dragging. I checked it out and the brake pads were on the wrong way. Not sure who installed those.

I replaced pads and new rotors. Still rubbing. Everytime I press my brakes my piston is not releasing, but can use a c-clamp and get it back in. Is this because of the caliper, brake hose, or air in the line? Any help would be great before I throw money into it.

Thanks, Phil