Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › Brake issue › Reply To: Brake issue March 23, 2023 at 12:09 am #1024659 BillyParticipant When bleeding, you’re not looking for piston movement. You’re looking for fluid coming out of the valve. Is that happening? When you’re done bleeding, does the piston operate? If not, possibly a defective caliper.