Proportioning valve reset - 1994 Ford Ranger Supercab

There is no reset on them. What will work sometimes is to completely remove the brake light switch assembly from the valve and slowly push and release your brake pedal a few times. Then reinsert your brake light switch. If this doesn't work you will have to replace the proportioning valve. New price will likely scare you so head for the scrapyard.

to reset the proportioning valve try bleeding the master by applying pressure and slowly opening one line at the master until the valve centres. you may have to do the same with the other line to get it to centre, sometimes you have to hit the area where the valve is as it may be stuck to get it to move.

You replace it. A proportioning valve is what directs the brake fluid where to go. If it malfuctions it must be replaced

rearline may be blocked

Did you open brake system lines? If you did they need power bled. If not sometime proportions do go bad.

Usually if the car has a valve it is mounted on the firewall. But your master cylinder has 4 connections, one for each wheel. So I doubt your car has a separate proportioning valve. You could check with the dealer to verify.

Your proportioning valve is likely stuck to one side. Was there a break in the line recently? That is usually the cause of this condition. To reset the valve, try opening the right front bleeder and collapsing the left front caliper piston back into the caliper. This will put back pressure on the valve. Then try normal bleeding process. If this doesn't work, you may need to replace the proportioning valve. The book says your valve is below the master cylinder. If you need more instructions or have questions, please get back to me.

Proportioning valve for the brakes? rear brakes? rear brakes are located on the rear end, for all brakes(front to rear proportion) is usually part of or under the master cylinder, and if either are bad then you need a new one, there is no resetting them

the stratus is know for clasped rear brake hoses .This stops the flow off brake fluid. try opening the brake lines at the master cylinder that go to the rear.pump up brakes first! if you got fluid than check the brake line if this is rear disc brakes on the line at the rear will be a built in proportioning valve.if drum loosen rubber hose line before the rubber part to see if you have fluid. If you do replace the brake hose! On you 74 challenger by the way i love dodge! any way on the valve there is a small button on the front of the proportioning valve that pops out it needs to be tap in lightly. also hit the brake peddel kind of hard a couple off times if that doesn't work. thanks for your question


p.s that hex bar on the is a junction not a proportioning valve .