As the pads wear, it's very common for a ring of dirt or rust to build up around the part of the piston that self-adjusted out past the square-cut seal. You have to push the piston back in to make room for the new thicker pads. Doing so runs that ring of dirt under the seal where it catches causing the piston to stick and not release after braking. Two things that will prove this is happening are those brakes will be real hot after driving and if you stop on a slight incline, shift to neutral, and release the brake pedal, the car won't creep downhill on its own. Since this started with the new pads, the cure is very likely to be new or rebuilt calipers.
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Wednesday, July 27th, 2011 AT 5:54 AM