Question about 1998 Ford Explorer
If your valve becomes defective then the brake pressure ratio to the front and the rear brakes will change. You will see or feel a difference. the front-end may nose dive or lock-up. The rear brakes may react the same way.
Posted on May 12, 2009
It sounds like we are discussing a proportioning valve.first indication would bemore brake wear on one of the two axles, or like the man said, hard stops will cause nose dive or slow or lazy feeling brakes if its the rear working. I doubt it is a restriction but just a repositioning of the valve.
To correct or better said balance the proportioning valve, follow these steps. If you can determine which axle is doing all the braking, do so. Then look at the proportioning valve and you will see a pin protruding on one end. That confirs the valve is not centered. The way to center it and get your light on the dash to go off is as follows. Make sure wire is on the valve. Light should be on. Have some start the engine and press firmly on the brake pedal. Do the rear first. with pressure on the pedal, open quickly rhe brake bleeder . a click should be heard when the valve resets. Person on pedal should notice the light go out.. chk valve for pin no longer protruding. Do it twice if needed but make sure there is firm to hard pedal pressure. Check your fluid level. ALWAYS PROTECT YOUR EYE FROM THE BRAKE FLUID IN THIS PROCEEDURE.. iF THAT DID NOT RESET THE VALVE, tHEN YOU MAY HAVE TO DO THE FRONT SAME WAY. ccREATE LEAK ON AXLE THAT IS DOING ALL RTHE WORK.
When you get it right the light will go out - good luck
Posted on May 15, 2009
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Posted on Jan 02, 2017
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