Question about 1997 Mazda 626

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Can't get brake fluid to flow out antilock. Can't bleed brakes because no fluid coming out of the antilock system. Fliud going to antilock none coming out. Any fix on this.

All started when the brake where slammed on real hard to keep from hitting someone.

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  • Mazda Master
  • 20,706 Answers

Did you read the FSM book first, or pages on how to bleed your ABS system?, some cars require a scanner that can cycle the modulator to bleed out air.
97 626, ill look.
did you remove any parts , up stream of the modulator?
(called the hydraulic unit by mazda)
is the ABS lamp glowing?

here is page on HU swap. (would be worst case)
seems its not special bleeding type. "says "in the usual manor"

  1. If necessary, remove the fuel filter and igniter mounting nuts and move them out of the way.
  2. Remove the charcoal canister from the vehicle and if the vehicle is equipped with cruise control, remove the cruise control actuator.
  3. Disconnect the brake lines from the hydraulic unit. Correct reassembly is critical. Label or identify the lines before removal. Plug each line immediately after removal.
  4. Disconnect the electrical harness connectors to the hydraulic unit.
  5. Remove the 2 nuts holding the hydraulic unit. Remove the unit upwards.
0.) disconnect battery first.
The hydraulic unit is heavy; use care when removing it. The unit must remain in the upright position at all times and be protected from impact and shock.
  1. Set the unit upright supported by blocks on the workbench. The hydraulic unit must not be tilted or turned upside down. No component of the hydraulic unit should be loosened or disassembled.
  2. The bracket assemblies may be removed if desired.
To install:
  1. Install the brackets if removed.
  2. Install the hydraulic unit into the vehicle, keeping it upright at all times.
  3. Install the retaining nuts and tighten.
  4. Connect the electrical connectors.
  5. Connect each brake line to the proper port and double check the placement. Tighten each line to 113-190 inch lbs. (12.9-21.5 Nm).
  6. Fill the reservoir to the MAX line with brake fluid.
  7. Bleed the master cylinder, then bleed the brake lines.
  8. If removed, install the cruise control actuator and the charcoal canister.

Posted on Apr 15, 2015


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Posted on Jan 02, 2017

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SOURCE: brake bleeding

your line is clolapsed

Posted on Dec 18, 2008

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SOURCE: 1989 mazda mx6 brake fluid leaking

That is your clutch master cylinder leaking. it will leak inside and cause a big mess. They cost between 47.00 and 75.00 depending on the manufacturer and where you buy it from.  PBR's (an after market manufacturer) part number is JG83-41-400.

Posted on Dec 31, 2008

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SOURCE: Slow drag starts, stalling and surging when at a stop

you could have a brake booster issue. you can do a simple test on another car by leaving the engine off and press the brake repeatedly 3 or four times will use up the vacuum in the brake booster. Once you have done this does it feel like the brake pedal in your van?

Posted on Jan 16, 2009

  • 1 Answer

SOURCE: hey there can any one help

It sounds like your master cylinder is in need of replacement or rebuild. Unless you have an air bubble in the line somewhere (bleeding should have fixed that), you have a worn master cylinder that is cracked weak. There are various rebuild kits on the market with instructions.

Posted on Feb 08, 2009

  • 460 Answers

SOURCE: bleeding brake on a 2002 mazda protege 5

Start from the furthest away from the master cylinder and work your way forward..And make sure who is helping you bleed them they hold the brake to the floor and dont let up until you've tighten the bleeder screw..And make sure your master cylinder is full every time you bleed one tire so that you dont run out getting more air in the systems..Hope this helps you and Have A Great Day

Posted on Apr 05, 2009

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1 Answer

How do i bleed antilock brakes

This is best done with 2 people , 1 to operate brake pedal the other to open and close blleed nipples at wheel. Make sure that fluid reservoir is kept full during bleeding. Start with wheels closest to reservoir. Open bleed nipple and press brake pedal repeatedly until pressure increases. Do each wheel in turn topping up with fresah fluid as needed.

Mar 04, 2016 | Cars & Trucks

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I have a ford territory st 2007 turbo the brake system is faulty. first the brakes lock. I replace the master cylinder. I try to bleed the brake system, but could not manage to do so. I send the car to a...

Without getting too technical, is it possible the new Master cylinder was defective or the brake lines put on the wrong connections? Find a similar vehicle on a car resale lot and take pictures of the Master cylinder. Compare to yours.

If you have antilock brakes, there is a control box which has flow valves inside. It affects the flow of brake fluid after the Master Cylinder pushes the fluid out.

A properly equipped repair place would connect hydraulic gauges to the brake lines to see how pressure was distributed. The Mechanic would then know where the pressure drop is.

What may be happening is there are reports of collapsed rubber brake hoses. The rubber inside the hose forms one-way flaps that trap brake fluid so that the pressure can not release when you take your foot off the brake pedal. Your brakes use a combination of steel and rubber lines. This means all you need to try is changing the rubber portion of the lines to the wheel calipers.

Dec 08, 2014 | 2007 Ford Territory 4.0

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I tried to bleed the brakes rf good lf no fluid comes out.replaced rf line working good,pulled line from master cyl. and pulled bleeder valve no fluid. i have a 99 cavilier with abs,any idea.i havent tried...

Im confused first thing is to connect all lines, fill master and start bleeding at master, have someone pump brake three times and hold, open line at master allow fluid or air to flow and close, do not leave open to long,after 3 sec of fluid flow close line. you will do this to every line on the master. pumping the pedal three times and holding down pedal every time you open the line , after bleeding master you will then go to the left front as this is the brake with no fluid flow. you will make sure brake fluid is full always check after a few bleedings.

Remove the bleeder screw and place finger over the hole. tell them when to go down and when to let up, this may take a while if a lot of air is in system, remove finger and tell them to push down then put finger over hole and tell to release then tell them to push as they push release finger, you will need to do this until you get fluid flow making sure when pedal is released that hole is covered with finger so that air is not sucked into system. once you get a flow you will put bleeder in and bleed that wheel, if bleeding is good you will then bleed system starting at rt rear then left rear and then rt front and last left front.

Dec 25, 2012 | Cars & Trucks

1 Answer

I try to bleed rear brakes,but no fliud comes out

If your brakes will pump up and not go to the floor then it is probably pretty simple. First, is someone inside the vehicle and stepping on the brakes when you turn the bleed valve? If not that is the problem. If there is someone, then check the fluid in the master cylinder and make sure that both reservoirs are full of brake fluid. If that isn't it, visually check the lines for crimping all the way back to the MC.

If none of that is wrong, then the calipers are damaged internally and you will need to rebuild them. The folliwng is a good explanation of how your truck brakes work and has some good diagrams showing you the guts of the caliper.

Aug 28, 2011 | 1995 Toyota Tacoma

2 Answers


Brake pads, rotors, and boosters do not cause brakes to fade. They also do not cause the light to come on. Hydraulic leaks cause brakes to fade and also the light to come on. Check all of your brake lines and fittings for leaks. Check also the calipers and/or wheel cyliders for leakage. If you cannot find any external leaks and you are not losing any brake fluid, then the problem is caused by an internal leak in the master cylinder or (if you vehice is equipped with antilock brakes) the antilock control module

Mar 07, 2011 | Nissan Altima Cars & Trucks

1 Answer

Line broke was leaking fluid then stopped leaking . no fluid comes out of abs unit on frame. is there a way to reset the abs unit to get fluid to rear brakes again

Replace the broken line then, you must bleed the entire brake system , each wheel works by itself on these cars, . Put the rearend in the air get the tires off and then find where the lines go into the ABS unit. Bleed fliud there first, then the individual wheel cylinders in the rear. after you bleed the system, check to make sure the brake system is balanced.

Oct 19, 2010 | Ford Ranger Cars & Trucks

1 Answer

Need sequence to blrrd brakes 02 dakota

Dakota, 2001-2005

Bleeding the Brake System
Brake fluid tends to darken over time. This does not necessarily indicate contamination. Examine fluid closely for foreign matter.
The primary and secondary hydraulic brake systems are separate and are bled independently. During the bleeding operation, do not allow the reservoir to run dry. Keep the master cylinder reservoir filled with brake fluid. Never use brake fluid that has been drained from the hydraulic system, no matter how clean it seems.
  1. Clean all dirt from around the master cylinder fill cap, remove the cap and fill the master cylinder with brake fluid until the level is within 1 / 4 in. (6mm) of the top edge of the reservoir.
  2. Clean the bleeder screws at all 4 wheels. The bleeder screws are located on the back of the brake backing plate (drum brakes) and on the top of the brake calipers (disc brakes).
  3. Bleeder screws should be protected with rubber caps. If they are missing, the orifice may easily become clogged with road dirt. If the screw refuses to bleed when loosened, remove it and blow clear. Aftermarket caps are readily available.

Bleeding the ABS System
This is accomplished using the same methods as for the base brake system. Refer to those procedures.
ABS system bleeding requires conventional bleeding methods plus use of the DRB scan tool. The procedure involves performing a base brake bleeding, followed by use of the scan tool to cycle and bleed the HCU pump and solenoids. A second base brake bleeding procedure is then required to remove any air remaining in the system.
  1. Perform base brake bleeding. Refer to the appropriate section.
  2. Connect the scan tool to the data link connector beneath the dashboard.
  3. Select "Antilock Brakes" followed by "Miscellaneous", then "Bleed Brakes". Follow the instructions displayed until the unit displays "Test Complete", then disconnect the scan tool and proceed.
  4. Perform a base brake bleeding a second time.
  5. Top up the master cylinder.

Hope helps (remember rated and comment this).

Aug 26, 2010 | 2002 Dodge Dakota Club Cab

2 Answers

Brake pedal dropping to floor

do u have the antilock brake bleeding tool? if not you will need to have the dealer bleed the brakes, the ABS control valve must be electricaly held open to bleed the brakes there of course is a special tool for this.

Oct 18, 2009 | 1994 Chevrolet S-10

1 Answer

No brake pressure

Your complaint states that you see no air, is there fluid coming out of the left bleeder when bleeding the brakes? If you only see a few drops dribbling out, or nothing comes out at all...This can be a very difficult problem to solve. If this vehicle is a 1992 or later, it has rear antilock brakes, and if it is an ABS system, bleeding usually requires special equipment, and procedures. But there is something you can try. This takes quite a bit of time and patience, and a little bit of preparation. First you must realize that in the case of rear ABS, each rear brake has it's own fluid source, and plumbing from the ABS unit. If the obstruction is in the ABS unit none of the steps following will solve the problem, but you'll have to perform these steps to find out! DO NOT TOUCH THE BRAKE PEDAL UNTIL I INSTRUCT YOU TO HAVE AN ASSISTANT HELP YOU! USE PROPER PROTECTIVE EQUIPMENT! (Gloves, and eye protection, and protect your skin from exposure to brake fluid!) First we must know whether the flexible brake hose on the left rear is obstructed. The easiest way is to simply replace it, or if you don't want to start with a new part, you could disconnect it from the steel brake line that runs along the frame towards the rear of the car. (you don't have to remove it from the wheel cylinder first). Place a drip pan underneath the disconnected components. Now open the hood and remove the master cylinder cap. Make sure the brake fluid level is at the maximum height in the master cylinder. Now go back and look to see if there is any fluid leaking from the steel brake line. If there is not, then this is the point where patience is a virtue. There is air in the system all the way to the ABS unit. If the ABS unit is not obstructed or defective, fluid should flow by virtue of the force of gravity through the system and out of the end of the disconnected steel line, but if there is no fluid flow, it will take several minutes to possibly up to an hour and a half. If you have the patience to leave the car alone, maybe go to lunch, or to the auto parts store to shop for a while, gravity will do the bleeding for you. Once fluid begins to leak from the line, reconnect the brake hose and open the bleeder. Allow several more minutes for the wheel cylinder to fill and fluid to bleed out of the bleeder, then close the bleeder. Now do a complete bleed procedure using an assistant to pump the brakes while you finish bleeding any remaining residual air out. If you didn't get fluid from the bleeder, after you reconnected the hose, and after you waited long enough for the wheel cylinder to fill, then the brake hose is obstructed, and you will need a replacement brake hose. Once you are sure there is fluid flow, and no obstructions between the bleeder and the ABS unit, then you shouldbe able to obtain adequate pressure. If you can not get pressure, or fluid flow, you probably need to replace the ABS unit. There are additional procedures for ABS unit bleeding, but again, special equipment is required, so professional service is recommended.

Sep 20, 2008 | 1992 Oldsmobile Ninety Eight Regency

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