when i brake a bit harder the brakes work then lock if the pedal is down a bit when they lock the pedal wont move any more when driving there is a knocking noise too there are no lights on the dash board i have checked the bolts/pads/disks/the car also has ABS the knocking noise is at the right rear wheel pleas help

darren mckeeman, May 2011

That knocking noise is the ABS working as it should, numbnuts

DB, May 2011