If you're sure its not the Ebrake and the calipers (did you check the slider pins?), and the brake hoses (collapse on the inside), then it is the porportioning valve. Brakes are slow frustrating process of parts replacemnt elimination. headbang I just did the same thing.
It could be:
1.) Slider pins (they seize up)
2.) Caliper piston (Can seize up too)
3.) Brake Hose (Internally collasped)
4.) Proportional valve (Can seize up too)
My drivers rear was locking up too. I check #1 (OK), Replace the caliper and rotor (pads ground down) and just last week replaced #3...
I replaced mine on Monday along with the brake line. My brothers discount from the Lincoln Dealership he works at made it $60. I replaced the rotor (down to rivets)and caliper the week before cause the drivers rear brake was not releasing cuss . His attempt to "fix" the proportioning...
This is going out to all the year one (1989) owners. What was invloved in getting Gen III wheels under the rear fender wells? How much cutting and/or tire size combos? :confused: We all know how special the rear fenders of our cars are. :p
I'm going through the same thing now! headbang Driverside rear. Replaced the caliper and rotor, cable OK; still sticking. Noticed the proportioning valve was sticking and attempts to correct (wacking valve pistons? w/hammer) failed. Will be replacing that and the brake hose now. Those are...
Could be a leaky windshield. The water runs down behind the dash and soaks into the padding, which just sucks it up like a sponge. It'll go all the way to back. Pull the carpet up to let it dry (this works better in the summer) and good luck finding the leak :mad: I'm still looking for mine.
This goes out to those who have SFCs. After the SFC (especially the long ones) are installed, do they interfere with servicing other items, like replacing the clutch, etc?