Bench bleed a 4 port master brake cylinder on a 2003 Chevy Monte Carlo?

To bench bleed a 4-port master brake cylinder on a 2003 Chevy Monte Carlo, first secure the cylinder in a vise with its ports facing up. Fill the cylinder with brake fluid, then insert the supplied plastic tubes into the ports and submerge the other ends in the fluid. Pump the piston slowly until no air bubbles are visible in the fluid, ensuring that fluid circulates through the tubes. Once complete, remove the tubes, cap the ports, and install the master cylinder back onto the vehicle.