Q: How to replace the Brake Proportioning Valve on Cadillac Eldorado?
A: Before you start to change the proportioning valve you must locate the left or right valves under the vehicle and secure the brake pipe with a rubber cap to avoid brake fluid loss. First disconnect the brake pipe from the left and right proportioning valves. To install the proportioning valve either left or right select place it into the brake pipe end and apply torque of 15 Nm. To finish the process you need to drain hydraulic brake fluid from the system.