What happens when a proportioning valve goes 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. Furthermore, the wheels will lock up more easily on wet surfaces. The rear brakes may feel touchy when applied even gently.
Where is the proportioning valve located?
Where is the proportioning valve? Proportioning Valve This valve, also frequently referred to as the equalizer valve, can be found between your brake system’s master cylinder and your car’s rear wheels. The proportioning valve acts to control the balance of pressure between the front and rear brakes.
How do you reset a proportioning valve?
How to Reset a Brake Proportioning Valve
- Locate the brake proportioning valve near the rear brake line. It will have one or two buttons located on it.
- Push the reset button located on the valve with your fingers, which will reset it so the valve is working properly again. Inspect the brake pressure.
Where is the reset button on a proportioning valve?
Locate the brake proportioning valve near the rear brake line. It will have one or two buttons located on it. The reset button usually has a rubber cap on it. Push the reset button located on the valve with your fingers, which will reset it so the valve is working properly again.
How do I free a stuck proportioning valve?
Tap the proportioning valve with a tack hammer several times lightly — sometimes this frees up a corroded bore and piston spool inside the valve. Wiggle the brake light warning switch wire on the top of the proportioning valve, making sure it has a tight, clean connection.
Can you repair a proportioning valve?
The proportioning valves are not repairable and should never be disassembled. They rarely fail, and all other causes of a brake problem should be thoroughly investigated before changing this valve. The valve is located either on the right fender apron or directly below the master cylinder.
Can you eliminate a proportioning valve?
the only downside to getting rid of the stock prop valve is that the brake light won’t light up when you lose pressure in either the front or rear brakes. another option is to gut the proportioning part of the prop valve so that it functions as a distribution block and run an adjustable valve in the rear line.
Can you bleed a proportioning valve?
The proportioning valve doesn’t have any way to bleed air, so you will have to bleed the front and rear brake lines in order to remove any air trapped in the valve.
What is the difference between a metering valve and a proportioning valve?
The Metering Valve is located in line to the front brakes to allow pressure to cause the valve to open allowing pressurized brake fluid to flow to the caliper. A Proportioning valve is required on vehicles that have disc brakes on the front wheels and drum brakes on the rear wheels.