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Brakes not pumping up when bled

When bleeding brake pedals not pumping up. it has a plunging sound from master cylinder going to brake booster.

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Posted on Jan 02, 2017

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SOURCE: 94 S-10 Chev Brake problem

This is an easy fix un plug the abs sensor from spindle abs light will come on but the brakes will work only abs will not

Posted on Nov 24, 2008

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SOURCE: 2005 f150 spongy brakes

it sounds like your still not getting all the air out of your lines. it helps to have a brake bleeder but they are expensive, it also could be that the gasket inside the master cylinder is inverted even if it is a new master cylinder this could be the case, ive had four bad remanned ones in a row, before i got a good one... hope i could help

Posted on Mar 24, 2009

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SOURCE: 1998 chevy s10- brake pedal goes to the floor-

Did you put fresh fluid in the master cylinder? I really think you still have air in the lines. To bleed manually, start with the bleeder the greatest distance from the master cylinder, car running, helper pushing down about half way on brake pedal and releasing 3 times, on 3rd time, holding pedal down to half way depressed point while you open the bleeder valve. Repeat until you are sure all air has been flushed out. Check master cyl reservoir level often, because if it gets low and you **** air into the system, you have to start all over again. Go to wheel next greatest distance from master cyl, repeat above, working your way to wheel closest to master cyl last.

Posted on Apr 12, 2009

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SOURCE: bleed brakes but no pedal

Good! You bled the master cyl. before installation! The proper order of bleeding the lines, is to start with the wheel the greatest distance from the master cylinder. Then work your way to the next greatest distance, and last, the closest wheel. Make sure all air is removed from the lines before you proceed to the next wheel, and frequently check the master cyl. level, because, as I'm sure you know, if you **** in air at the master, you have to start all over again. I'm assuming you don't have a power bleeder, so with a helper do this with car running (make sure it's on safety stands and not going to fall on you!) Pump pedal 3 times, no need to mash the pedal into the floor, just 3 pumps 1/2 way down, hold 3rd pump at half way down level while bleeder is opened, when flow is about to stop at bleeder, close bleeder and repeat til no evidence of any air. Let me know how it goes and if you need any help.

Posted on Apr 21, 2009

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SOURCE: 97 Chevy Silverado Brake Problem

start bleding again from left to rigt all the way around.

Posted on Oct 09, 2009

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3 Answers

Even after replacing front and rear brakes, the pedal goes nearly to the floor (but does stop the vehicle). What do I need to do


Brake booster has gone bad or u have a vacuum leak. Check the seals for leaks around booster where the. Fluid goes in the plastic holder. Check for vacuum leak going to break booster

Apr 15, 2015 | 1999 Plymouth Breeze

1 Answer

Brake peddle goes to loor and drops revs and ive adjusted brakes and bled them still go to floor when i turn car back on . is it booster or master cylinder ?


start the bleeding process by opening the longest line first. Get a mate to help with the process . Pump the pedal a few times and hold it down while the bleed screw is opened. tighten the screw and pump up again open bleed screw . Repeat process until no air comes out of the screw . Repeat the process back to the last line. Keep the master cylinder reservoir full during the processes.. Operational brakes will work wit or with out the booster . The booster only reduces the amount of energy you have to exert to put the brakes on

Dec 14, 2013 | Proton Cars & Trucks

8 Answers

Changed calipers rotrs pads still no brake presure wont pump up to bleed air out of lines could master cylinder or booster be bad


Booster is okay, you have to bench bleed the MC, first. So, since it is installed, bleed it with a kit from the parts store, little plastic hoses screw in to the brake hose fittings, and put other end under fluid in reservoir. pump slowly, especially wait at end of release, for fluid to refill piston chamber....pump until no bubbles...

FROM THIS POINT you must not allow fluid in reservoir to go low, or start all over again....

Now bleed the brakes and you will eventually get pressure.

Mar 01, 2011 | 1998 Dodge Neon

1 Answer

Install new brake pads and rotors all 4 wheels. Replaced front 2 calipers. Bled brakes. New clean fluid coming out. pedal is still soft and goes to floor. 200 Seebring.


Are you losing any Brake Fluid? Is it visible anywhere at the four wheels? Is it visible anywhere else?
The Master Cylinder may be defective. When you bled the Brakes did you maintain proper Brake Fluid Level in the Master Cylinder? If you didn't: and air entered into the Master Cylinder there maybe air within in the system in the Master Cylinder. You can bleed the Master Cylinder by removing the brake lines, adding more fluid, pumping the brakes, bleeding the air out of the system.
Are you losing Brake Fluid and can't find a noticeable leak? Then there is a good posibility that the rear seal in the Master Cylinder is leaking and the Fluid is going into the Brake Booster - which is the large wheel shaped drum located on the fire wall. In this case both the Brake Booster and the Master Cylinder will have to be removed and replaced. The Booster contains seals that Brake Fluid is very caustic to and will ruin these seals- causing future failures.
If no Brake Fluid is lost, no leak found: Check the Brake Booster Vacuum Advance. This should be connected to the outside of the Booster, attached to a hose, with the hose going to the engine. Check to see if this is working properly. Replace if needed.

Dec 31, 2009 | 2002 Chrysler Sebring

2 Answers

I have a 92 chrsy. 5th ave with no antilock brakes. just base brakes with rear drums. replaced master cly. due to leaking and replaced all the brake lines and hoses. i have good streams of fluid from all 4...


When you bleed the brakes are you starting with brake furthest from the master cylinder? Also was the master cylinder bench bled? If everything there is okay and you are not getting any air in fluid stream, you could try bleeding the brakes by having some one slowly pump the pedal till it is firm. Then have them let off open first bleeder valve and slowly depress to floor and hold there untol the valve is closed. repeat this at all bleeders. You may want to have car running to do this. Try this and let me know.

Jul 02, 2009 | Chrysler New Yorker Cars & Trucks

1 Answer

SOFT BRAKE PEDAL ON MY DAEWOO


MAKE SURE THE ARE NO OTHER LEAKS.IF U DID NOT BENCH BLEED THE MASTER CYLINDER BEFORE U PUT IT ON U PROBLEBLY HAVE AIR IN THE SYSTEM.BLEED THE MASTER CYLINDER AT THE LINES THAT COME OFF OF IT.THEN U NEED TO BLEED THE REAT OF THE BRAKES IN THIS ORDER.RIGHT REAR,LEFT FRONT,LEFT REAR.RIGHT FRONT.WHEN BLEEDING THE BRAKES WAIT 15 SECONDS BETWEEN PUMPS OF THE BRAKE PEDAL.IF U GO TO FAST U CAN DAMAGE THE MASTER CYLINDER.GOOD LUCK

May 01, 2009 | Daewoo Leganza Cars & Trucks

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