The best place to put the proportioning valve is adjacent to the master cylinder where it is easily accessible. Once the valve is in place, you should first test to ensure that all air is bled out of the hydraulic system.
How does a GM proportioning valve work?
The proportioning valve reduces the pressure to the rear brakes. If equal braking force were applied to all four wheels during a stop, the rear wheels would lock-up before the front wheels. The proportioning valve only lets a portion of the amount of pressure to the rear wheels thus preventing rear wheel lock-up.
Can you adjust a proportioning valve?
Bleeding the brakes with an adjustable proportioning valve is an easy task, but you will need to follow a few steps to make things go smoothly. You’ll want to have around 60-70% of the braking on the front, so adjust the Valve clockwise to increase rear brake pressure and counterclockwise to reduce rear brake pressure.
How do you install a proportioning valve on a car?
The instructions below will guide you as how to install a proportioning valve. Find the master cylinder. You will see two brake lines coming out of the master cylinder. The proportioning valve is on the line closest to the engine. Remove the old valve by cutting it off from both sides of the line. Use a pipe cutter for this step.
Where is the proportioning valve on a Toyota Corolla?
The proportioning valve is mounted between the brake line master cylinder and the rear wheels. It’s designed to adjust the pressure between the front and rear brakes, depending on how hard you’re stopping.
What are the functions of the proportioning valves?
Our proportioning valves provide four functions: Proportion pressure front and rear. 10 psi. residual check valve. Metering valve to apply pressure to the rear brakes before the front brakes. A brake warning light to detect a loss in pressure
How do I know if my proportioning valve is leaking?
From the “T” fitting, the front lines then split off and go to the left and right wheels. Our proportioning valve has a warning light switch built in (this is not a stop light switch.) The warning light will detect any loss of pressure, for example, a leaky wheel cylinder. We recommend you wire this light into your system.
