A ratcheting brake bleeder wrench is provided which sealingly couples to a bleed valve. The brake bleeder wrench has an internal fluid passageway which allows egress of fluid from a hydraulic brake system. The ratcheting brake bleeder wrench is used to open the bleed valve, allowing egress of fluid, remains in place during the bleeding operation, and reverses direction upon completion of bleeding to tighten the bleed valve back into sealing relationship with the hydraulic brake system.