It is used to equalizer the brake pressure from front to back. So that when you hit the brakes they all work at the same time and one does not grab before the other.
modern cars have a brake pressure equalizer on them. sounds like this valve is not working correctly.could also be a bad caliper on that wheel
Make sure brake fluid is full check that emergency brake is released fully check equalizer valve (where brake light switch connects) remove wire loosen fitting and step on brake lightly to center piston in switch
Check to see if it has a mechanically operated equalizer valve in rear lines and if so disconnect actuating rod and tie valve open to allow fluid flow
AnswerMake sure parking brake is fully releasedMake sure master cylinder is fullCheck to see if it has an "equalizer" valve that has to be manually resetAn "Equalizer valve?" he must mean the purportionating valve which is what controls the amount of braking power supplied to the front and rear wheels, Usually located right below the master cylinder. there is a small electrical switch on these valves which has a wire coming from it, this valve must be "centered" to get the light to go out if its the reason in the first place but this is usually only necessary if you lost your brakes due to a ruptured brake-line but I wanted to help with the answer that was given above. A repair manual would tell you how to reset that valve/switchzperiodz
The brake valve is located next to the master brake cylinder. The valve can be found just below the master brake cylinder.
A valve in the brake system which houses portioning valve metering and pressure differentional valve
Could be a collapsed (restricted) brake line Equalizer valve may have to be manually opened to allow full fluid flow (Ford)
QR1 valve is the brake valve to the steer axles. Follow the service lines from the brake chambers to where they intersect, and that's the valve they're both attached to. It meters air to the brake chambers and also governs air pressure in the brake chambers.
the brake control valve is used to control the amount of hydrauic pressure form the hydraulic system to the brake system through the metering valve.
The brake dump valve on a 1996 Chevy Suburban is used for bleeding the brakes after new brake pads are installed. It is located on the master cylinder for each brake.
Yellow for the tractor brake control valve, red for the trailer supply valve.