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Brake master cylinder works

PUT IN NEW MASTER CYLINDER BRAKES DRAGGING

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  • Cars & Trucks Expert
  • 412 Answers

Try adjusting the brake pedal throw rod that goes from the pedal to the booster. Give it a little more play.

Posted on Jan 01, 2014

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Posted on Jan 02, 2017

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SOURCE: 1996 T-100 dash brake light will not go out

The brake fluid level sensor in the master cylinder is stuck in the lower position which completes the circuit to illuminate the light.. Try tapping lightly on the side of the reservoir to loosen it. If that does not help, you will need to replace the level sensor.
Thanks for choosing FixYa for assistance.

Posted on Jan 25, 2009

  • 290 Answers

SOURCE: rear brakes not working on

There are seals in the master cylinder that may be bad.

Try bench bleeding the master (there are cheap tubing kits for this) and see if fluid comes out of the ports. If no fluid after bench bleeding, replaced the master cylinder (usually come with a cheap bleeder kit anyway)

Posted on Apr 13, 2009

redbeard00
  • 957 Answers

SOURCE: just replaced master cylinder on 1990 aerostar and bled the brakes, still the pedal goes to floor and i have no brakes

Did you bench bleed the master cyl. before installing it? then when you installed the new master, did you bleed all 4 points? If yes, then check all for points for leaking caliper/s and leaking wheel cylinder/s. If the van has ABS, check the valve body for a bleeder screw and see if air bleeds out of it. If you've checked everything twice and did everything right then your new master cyl. may be defective.

Posted on Apr 29, 2009

  • 232 Answers

SOURCE: Spongy brakes after bleeding them 2 times. Should I try to bleed the master cylinder or replace it?

Honestly your guess is as good as mine. But I don't think the master cylinder is NOT bad you still have air in the system. Get a big bottle of brake fluid bleed all four sides until you run out of fluid or your brakes work properly. You should divide the bottle's content in four, then use each quantity in each side. You'll be removing air and contaminated fluid from the system. Get a small hose that fits on the bleeders and an appropriate container. I have a good feeling if you do this your brakes will work just fine. I don't know how you are bleeding the brakes. I'll let you know the proper way just in case. This is a two man job, with the wheel off, have someone start the car. Have them pump the brakes a few times to get pressure. 1With the brake pedal UP open the bleeder, 2then have your assistant press the brake pedal all the way down and leave it completely pressed down. 3Close the bleeder valve, once close and only with the valve closed have'm release the brake. Repeat as necessary, bake depressed, open valve first then press brake. DO NOT depress until valve completly closed. Close valve THEN depress. Good Luck!

Posted on May 15, 2009

countrysi248
  • 443 Answers

SOURCE: Brake problem

do it again .. bleed the master cylinder maybe more than once .. I have had this happen before they are tough sometimes to get to take fluid right .. bleed it again till fluid is really flowing right .. your problem is the master cylinder not blead enough yet .. holler if you have more Jerry

Posted on May 17, 2009

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2 Answers

How do I bleed the brakes on a 2009 Pontiac G6?


when replacing the brakes you usually dont bleed the system ---usually bleed system when air gets in from like changing a line master cylinder or caliper-- and or master is empty .but to bleed you start at passenger rear first than drivers side rear,up to passenger side front ending at drivers side front

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What cause front brake lock up in hundai getz 1.3 2005 model


this will be from a faulty master cylinder wit a blocked compensation port
pads are dragging and building up heat which is expanding the brake fluid and as it cannot get back to the reservoir it puts the pads on harder
it is also evident if you apply the brakes and the car takes extra power top move off
I suggest that you take it to an accredited brake specialist and get a proper diagnosis and a quote for a new master cyl

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02 Ford Explorer sporttrac xlt. New rotors calipers pads and master cylinder. Bled it twice stream looks good new fluid. One day breaks stick then the next no breaks Break light on Proportional valve?


For some reason these vehicles you need to bleed brakes several times, had same problem, so air hangs up in lines somewhere it apears. When you say brakes sticks, describe it better, locked up, or dragging on rotors?
CERACOAT-NANOTECH.com

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1 Answer

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Did you bleed the master cyclinder before installing it?

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1 Answer

Brakes are spongy


Did you bleed the brakes after replacing master cylinder. If not you may have air in the system. Hydraulic brakes dont like air.

Aug 28, 2012 | Cars & Trucks

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Replaced master cylinder brakes are locking


if it is one wheel dragging check the flex hose they fail internally

Mar 30, 2012 | Cars & Trucks

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I change my master cylinder for my brakes and now I have no brakes what could be my problem to that


you must have a lot of air in system. the brakes need bleed to let the air out of system. did you bench bleed the master cylinder before putting it on car ! if not thats why no brakes. to bench bleed a new master cylinder, put it in a vise. fill it full or the proper level of brake fluid. push on the plunger with a dowel or another object. pump it till all air is out of master cylinder, you can tell when no air. it will be all fluid coming out of cylinder. keep checking brake fluid in master cylinder.make sure you push plunger in all the way.when all air is gone replace on car. if you do not loose any fluid from the master cylinder lines, then you can replace it without having air in system. bleed each wheel if needed. good-day!

Jul 10, 2011 | 2006 Chevrolet Impala

1 Answer

2006 chevrolet 1500 brakes shimmy without touching them,also when setting still mash couple times let off ,wheels hard to turn


check for front brake calipers dragging, if the are replace calipers and front brake hoses, if calipers ok replace master cylinder, This is how to check calipers, jack up front of truck have some one apply brakes and release as soon as they release the brake peddle the wheels should spin freely if not brake the brake line lose at master cylinder if wheels spin free with line loose replace master cylinder, if not replace calipers and hoses.....HOPE THIS HELPS

Nov 16, 2010 | 2006 GMC Sierra 1500 2WD

2 Answers

I have a 1989 gti, the front brakes were locking up after I drove it for a few minutes, so I went ahead and replaced, pads, rotors, calipers, caliper pins, master cylinder, and brake lines, however the...


I had this same problem on my 90 Jetta but it was the master cylinder that was the problem, I first replaced the master cylinder because it was leaking badly. The new master cylinder I put on was a manufactured defect, the internal piston inside the master cylinder was not machined enough (10mills too long) so when you applied the brakes the piston would not move far enough to release the brakes but after 20 mins they would slowly release themselfs just as you said your brakes do. The only thing that can cause this problem (if you have changed everything) is the master cylinder or the brake pedal itself, did you do anything to the brake pedal or near it to change its movemment ? Make sure the brake pedal once depressed returns fully to the float position where it should be. I would try another master cylinder preferrable a used one from another vdub the same as yours, eg year,model and country of origin some parts are different if it was made in Mexico or Germany. Its going to be a pain in the *** to have to replace the master again but I see no alternative. There is one more thing you can check I just thought of....check all your brake lines from the master to the calipers for any signs of dents or sharpe curves if the metal brake line is bent too much it will restrict the flow of the fluid returning to the master cylinder after brake pedal release but not during braking. Good luck

Jul 31, 2009 | 1989 Volkswagen GTI

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Brakes


HAS THE LARGE VACUUM LINE TO THE MASTER CYLINDER COLLAPSED, I.E. FLATTENED?

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