My proportioning valve is leaking out of the two ports on top that have no tubes coming out of them. Is there something I can do or do I just need to replace it.
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I just replaced the drums, drum hardware, shoes, pads, cylinders, and rotors. On my brakes a year ago and recently my brakes got soft over the period of about a month. I found fluid all over my proportioning valve and took video of it while I pumped the pedal. In the video I saw air bubble coming out of the two top ports of my proportioning valve. They stiffened up after I added fluid to my almost empty brake reservoir. I cleaned off the proportioning valve and drove it for a day. The proportioning valve was covered in fluid again.
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Hello,
Good find, it sounds like you really did your due diligence.
Yes, replace the proportioning valve, and make sure you use a quality component. OEM is not out of the question when it comes to the hydraulic brake system.
You will need a quart of brake fluid, the part, line wrenches, a jack, and jackstands.
You can drain the brake fluid from the system before you start, or just place a drip pan/rags where the brake fluid will drain.
Brake fluid will take your paint off, so keep it controlled.
After replacing the proportioning valve, you will want to replace the brake fluid in the system by flushing the brake lines through the normal bleeding process until your fluid comes out clean.
If there is any debris from the proportioning valve, this will help remove it.
Finally, don't forget to test the brakes before driving, and press the brakes a few times to ensure the pads are seated on the brake rotors before driving.
You know how your brakes usually feel, so if they don't feel "right" there is probably air left in the lines.
Bleed/flush from the furthest wheel from the master cylinder to the closest.
