98 merc sable.... brake issues... I NEED HELP: my car will de-cel too quickly some times... it feels like driving with the e-brake on. i put on a new set of calipers last night.. while we were doing that we put the car into drive to see how the wheels were spinning and they seemed to get hung up every few rotations, and then they would just stop completely .. while using no brake. the brake fluid is not over-full. i made sure the e-brake was not on, new calipers, new rotors, new master cylinder, something is causing it to stop on its own and the caliper mounting bracket is cutting into the sides of the rotors ... Any ideas????