Where is the brake proportioning valve on a car?
A brake proportioning valve is typically located in the rear brake line and enables you to adjust the rate of pressure increase to the rear brakes.
Where is the proportioning and combination valve located?
Average rating from 123,584 customers who received a Proportioning / Combination Valve Replacement. The proportioning valve, also called the combination valve, is located in the disc braking system. It is responsible for controlling the braking pressure between the front and rear brakes.
How does the proportioning valve on a master cylinder work?
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.
Why is the proportioning valve on my car going bad?
Since the proportioning valve decreases the pressure sent to the rear brakes, the main symptom the valve is going bad is the rear wheels locking up when the brakes are applied.
Why does the proportioning valve only work on rear brakes?
Vehicles with drum brakes in the rear have much lower pressure for the drum brakes than the front disc brakes. This is why the proportioning valve only lets a particular amount of pressure through to the rear brakes. If you suspect there is an issue with your proportioning valve, check for the following symptom:
How do you fix a proportioning valve on a car?
Have your assistant hold the brake pedal down while you place the flare nut wrench on one of the front brake line cap nuts on the proportioning valve, if the dash light remained on. Loosen the cap nut with the wrench and have your assistant firmly press the brake pedal.
Average rating from 123,584 customers who received a Proportioning / Combination Valve Replacement. The proportioning valve, also called the combination valve, is located in the disc braking system. It is responsible for controlling the braking pressure between the front and rear brakes.
Why does my brake valve stop working when I stop?
The valve stops the flow, or pressure of brake fluid to the rear drum brakes during every heavy braking or emergency stops; otherwise, the rear brakes lock up and skid, receiving too much pressure from the master cylinder.