Question about 1995 Mercury Sable

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How do u bleed brakes on 1995 mercury sable?cannot get them bled all the way.Would it have anything to do with the proportioning valve?

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Yes, if you are trying to bleed the back lines the proportioning valve can possibly reduce pressure to the rear. Are you pumping up the pedal to bleed? In this car, the recommended procedure is to start with the pedal up, open the bleeder, push the pedal down, close the bleeder, allow the pedal to retract, wait 5 seconds, repeat. OK?

Posted on Oct 03, 2010

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Lots of the new cars needs pressure to be bled and also a computer to go in to brakes to open up the valves please contact you dealer

Posted on Oct 03, 2010


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1997 mercury sable gs 3.0l replaced master brake, still having brake pedal feeling spongy and slowly traveling down. i bench bled master brake and bled brake right rear left rear right then front.

If the master cylinder is replaced, care must be taken to prime the new master cylinder by removing all of the air and completely filling it with brake fluid. The spongy feeling is air that is still in the circuits. You will need to bleed the back brakes as well as the front ones again. The order that you bled them seems correct, but perhaps there remained some air in the main trunk lines.

For the best results 2 people are needed. Start at the further distance wheel cylinder and bleed at least three (3) master cylinder reservoir volumes of fluid (back brakes). Bleed the fluid with use of a piece of tubing attached to the bleed port that is long enough to reach almost to the bottom of a long neck or tall clear jar (clear drink bottle works well). When the bleeding begins, after one or two brake pedal pushes, make sure that the end of the tubing is below the surface of the fluid and keep it under. It best to have a clear bleed line (to observe air). Keep pumping the brake pedal while being careful to not completely empty the master cylinder reservoir (leave 1/4 full always). Repeat the same technique for each wheel cylinder with at least two (2) reservoirs full for front brakes. Partially close the bleed ports when almost finished (at least 5 pedal strokes without exit of any air). Completely close the ports during the down stroke of the brake pedal, with the tubing still attached. Be sure each bleed port is closed snuggly.
Most of the brake fluid can be reused, but not the darker portion at the bottom of the jar.

Oct 09, 2016 | 1997 Mercury Sable

2 Answers

95 mercury villager how do I bleed the rear brakes? I replaces lines from the master cylinder to the proportioning block. The brakes are still soft after bleeding them the way I learned in school in the...

The Expert is correct for most situations, gravity bleeding is one method. The problem may be that the safety feature which engages diagonal braking with a floating valve, requires the valve to re-center itself to allow for 4 wheel braking. Sometimes this is a stubborn process.

The prescribed method for bleeding is to start with the longest line first and then work yourself forward to the shortest brake line. If you have the money to spend, a vacuum hand pump with a brake fluid cup attachment is a handy tool. It will have additional uses in testing anything Vacuum operated that you wish to check in later years. This method is a draw method versus gravity or pressure/power bleed method.

I like the draw method because you can see "air foam" and contaminants leave the system and get a crystal clear flow from the brakes. Properly and patiently done, this method is cleaner and can keep you garage floor clean if that matters to you.

Mar 21, 2015 | 1995 Mercury Villager

1 Answer

Bleed proportioning valve

You don't bleed these. They are part of the system. Bleed the brakes normally.

Mar 25, 2014 | 1995 Dodge Ram 2500

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Bleeding brakes on 2000 mercury sable

Yes, they do. A good time to have your brake system checked out as well.

Jan 05, 2013 | 2000 Mercury Sable

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How do i bleed brake proportioning valve on chevy malibu maxx 06 i put all new calipers and bled the brakes but back rear piston still gets stuck

That dooesn,t have to do with the proportioning vavle,The caliper is defective, Was not rebuilt properly like all the rebuilt (****) You get now a days,

Nov 11, 2012 | 2006 Chevrolet Malibu Maxx

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Brakes on a Lincoln mark viii coupe 1995 fitted new M/cylinder L/front and R/rear wont bleed is somthing wrong in the abs and how much for a new unit

All four brakes must be bled to eliminate the trapped air...probably not anything else...try lubricating the bleeder fitting with PB Blaster before trying to cautious as this valve can break off, and that means rebuild the caliper drill out broken fitting...or replace caliper...either way all 4 brakes must be bled...start with the rear farthest away from the master cylinder then other rear...then right front, then last is left front...Hope this helps.

Sep 06, 2012 | 1995 Lincoln Mark VIII

1 Answer

I just replaced the brake master cylinder and rear wheel cylinder on my 1987 toyota pickup, and now I have no fluid going to the back brakes. Bleeding them does nothing

check for fluid before and after the proportioning valve by disconnection the line after the valve and applying the brakes, if no fluid after valve try before valve if fluid is there then it is a bad proportioning valve. you did bleed the master cylinder before connecting the brake line and trying to bleed the brakes all at once right? If the master cylinder was not bled first then a lot of air may have been forced into the rest of the brake lines.

Oct 01, 2011 | 1987 Toyota Pickup

1 Answer

Installed new master cly.,bench bled, bled rr, broke off lr bleed valve (not opened), bled rf, tried bleeding lf but getting no fluid to caliper. is problem with proportiner valve?

The problem is probably that you must do the lr before moving to the front. The air in the lr will make it too spongy to bleed the front.
A wheel cylinder is only $25, so you might as well just replace it. And if you use vasoline or brake lube on the bleeder, it will not rust up on you next time.

Proportioning valves are not supposed to block a bleed. They can malfunction, but should not supposed to. And if you have the back working, that should reset the proportioning valve anyway. You can't leave the back. It must be finished.

Jun 07, 2010 | 1990 Plymouth Voyager

3 Answers

No brake pressure

should not need to bleed module try giving the proportion valve afew good smacks sometimes this will dislodge the valve then rebleed

Jun 03, 2009 | 1998 GMC Jimmy

1 Answer

I have a gmc 2500 4x4 and rear brakes locking up

Do you have a/the proportioning valve in your system? Pin needs to be pulled out for centering while bleeding.

Jan 25, 2009 | 1985 GMC C2500

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