[Chuck Moreland]

What is likely is that the pistons have not adjusted to the proper position in the caliper seals yet. When you release the brake they are being pulled too far back. So the next brake application requires a long piston travel, and long pedal travel to match.

You have a couple options.

1) Wait. In a few hundred miles they will settle in.

2) Drive the car on a non-busy street and repeatedly press and release the brakes. This may accelerate the seating.

3) Remove the pads one at a time and press the pedal to push the pistons out. Put a thin peice of wood in where the pad goes to prevent the piston from popping out. Now that you have the piston extended, push it back just enough so you can barely slide the pad back in. You may have to tap the pad slightly, it should be a tight fit. Do this to all pads. When you are done you should not be able to see daylight between any pad and the rotor.