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Is there two brake lines to rear

Could you tell me if there is two lines that go from the master cylinder to rear brakes

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  • Cars & Trucks Master
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Rear brakes has two brake lines from mastercylinder to both rear wheels cylinders. front brakes has two brake lines from mastercylinder to front brake calipers for each front wheel.

Posted on May 07, 2013

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Posted on Jan 02, 2017

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motor1258
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SOURCE: 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.

Posted on Jan 25, 2009

c17hydro
  • 2984 Answers

SOURCE: 1996 PLYMOUTH VOYAGER SOFT BRAKE PEDAL AIR IN LINES

I am a hydraulic technician and I can tell you that air is a killer in the hydraulic system.

Start from the rear and work your way forward. I f you are using the two person method, make sure the second person keeps the master cylinder full. If the fluid level dropped anywhere in between pressing and releasing the brakes....you have a lot of air in the system.

Make sure you are tightening the bleed valve when the brake pedal is full pressed.

Remeber...start from the rear brakes first, then do the front.

Posted on Mar 16, 2009

  • 65 Answers

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

  • 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

SOURCE: 1999 Plymouth Breeze - rear brakes locking up

You have a proportioning valve stuck. From the master the brake lines will run down the wheel well to another valve then out to the front calipers and rears when the prop valve sticks or freezes it then causes the rear or front system to lock up or not proportion the system evenly. 2. If that is not the case you may have contamination in the lines or the rubber brake hoses whick allow fluid to pass through it will not allow it to return almost acting like a back check valve therefore keeping you brakes on.

Posted on Jul 13, 2009

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Why even with new brake parts in the front and rear on my 2995 Ford f150 2wd truck would front brakes work but not back ? I even put truck on bay lift and hit the brakes and rear just kept spinning.


Bill:

Check your master cylinder. It could be a piece of junk lodged in the fluid port for the rear brake lines, or in the brake line its self. The fact that both rear wheels spin tells me that if it is a clogged line, it is between the two manifolds, (one next to the master cylinder, and the other where the rear brake line splits into two... one for each rear hub. Or it could be that the piston in the master cylinder needs to be replaced. I would disconnect one brake line at one rear wheel and disconnect the rear brake line at the manifold (near the master cylinder)and blow that line out with air pressure. . do not leave the rear brake line connected to the master cylinder as you blow air through the lines as you may damage the master cylinder piston packings. You'll have to bleed the brakes when you are done.

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Replaced some brake line, rear pads and one rear wheel cylinder. Now no pressure and nothing happening when trying to bleed.


Does the car have ABS ? And does it have an equalizer block for the 4 wheels ?
It sounds like the ABS has been affected, or there is an equalizer block that is stuck on the front wheels only.
Can you open the bleeder or the rear line on the master cyl and get fluid to come out by depressing the pedal ?

Jul 07, 2013 | 1997 Mercury Tracer

1 Answer

2001 Silverado 2500 HD Why Rear brakes don't work after I installed new hydro-boost power booster, master cylinder, calipers, and pads. I bled master cylinder before installing, and brakes beginn


Hello Patricia,

Have you checked the master brake cylinder reservoir for brake fluid loss?

I don't suspect the master cylinder as you have replaced it... but am more suspect of a leaking brake line or fitting which should have
been discovered when you had the system bled.

The only time I ever had a rear brake problem with a 2500 series Chevrolet was due to seized rear brake caliper guide pins...as your calipers are also new that is not your problem.

If your brake pedal feels spongy and travels to the floor board you have air in the system, a brake fluid leak or a failure in the power steering system, such as a broken hose, broken power steering pump drive belt, or failed pump, would result in a loss of pressure to both the hydro-boost and steering.

Find more information here:

. Hydro Boost Power Assist Systems Operation Diagnosis and Repair

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1 Answer

Replaced all brake lines, rear wheel cylinders, front calipers. No fluid to rear brakes, no fluid to master cylinder bleeder. Fluid is in front brakes. How to resolve? Thank you


It sounds as though where the rear brake lines meet up with the master cylinder; there is probably a piece of dirt in the lines that could be blocking any fluid from getting in. To test this, I would remove the brake lines from the master cylinder and then remove the master cylinder. Once done, have the master cylinder cleaned inside out. This will remove the dirt particles that are clogging your lines.

Aug 22, 2011 | 1988 GMC C2500

1 Answer

Bleeding the brakes ,But no fluide in the rear brakes


Check the master cylinder, pump up the brakes and crack the line at the master cylinder to the rear brakes, if no pressure and it was ran empty or is new part, bench bleed the master cylinder and recheck for pressure at the master cylinder, if you have pressure follow the brake line to the proportioning valve and crack that line before and after the fitting, good luck.

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1 Answer

Where is the rear brake line on the master cylinder


the rear brake line is connected to the master cylinder inside the hub ..remove the tire and remove the hub the 2 bolts that hold the master cylinder in place are at top the line going into the cylinder itself is the brake line

Sep 26, 2009 | 1995 Chrysler Sebring

1 Answer

Hello. i have a 1991 audi 100. brake padel has become mushy but there are no signs of brake fluid leak on the master cylinder or the lines. the brake pads are new. thanks


Just because there isn't an external leak in the brake system doesn't mean there isn't an internal leak in the master cylinder. A mushy pedal is usually an internal leak in the master cylinder or leaking wheel cylinders in the rear brake drums. Check the rear brake wheel cylinders for fluid leaks, if there are none or you do not have rear drum brakes, your best bet is the master cylinder :)

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Brake line diagram


Brake Lines and Hoses
Double-walled steel line is used in the hydraulic lines between the brake master cylinder and the front tube connector, and between the brake master cylinder and the flexible brake hose at the rear wheels.
Double-flared brake lines provide good leak-proof connections.
When replacing hydraulic brake lines, hoses, or connectors, tighten all connections securely. After replacement, bleed the brake system; refer to Section 206-00 .
The wet appearance of the outer cover of the rubber brake hose is referred to as "sweating." This is a normal condition for neoprene rayon braid hose and is not a sign of leakage or cause for replacement of the hose.

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