90 SC my brake and abs lights came on, then hard pedal. I check the pump motor relay and pump motor. Pump motor is running but after 5 minutes still running and hard pedal. Replaced accumulator and still the same problem. Removed complete master assembly and found little flow of brake fluid from low pressure line. Cleaned reservoir and flow is better. Removed accumulator and with pump motor running no fluid coming from accumulator port. I assume a bad pump. Any ideas and can I get a pump?