Rear brakes are binding, changed calaper, master cylinder, load sensor valve and there still not releasing, only release when bleed nipples are unscrewed , they are air over hydraulic, any suggestions would be appreciated..

Tracy edwards, March 2016

is brake pedal return spring ok and not broken or missing,make sure there is a slight ammount of play/clearance between pedal and master cylinder.also are you sure brake hoses [on affected wheels] are ok internally and have not collapsed inside..and are calliper slides free,check by removing pads,is calliper free to slide back and forth by hand!

k, March 2016