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How to bleed a master cylinder - Cars & Trucks

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Brake master cylinder ?
Don't have to
Just bleed all 4 corners at each wheel

Posted on Jul 10, 2013

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: How do I bleed the clutch master cylinder

Same as You Bleed Any other System Being carefull not to get air IN and IT sometimes TAKES FOREVER ________ STICK WITH IT ------ Took Me 2 hours One time

Posted on Jan 19, 2009

johnthejag
  • 286 Answers

SOURCE: bleeding the slave cylinder

Hi

Best to get the help of a friend to pump the clutch pedal for you.

Take care with the brake fluid, as it removes paintwork !

Top up your clutch fluid reservoir, connect a bleeding tube to the nipple on your slave cylinder, and put the other end of tube in a container.

Get your friend to pump pedal 3 times, and then hold to the floor.

Open the nipple for 5 seconds or so, then close.

Repeat this about 6 to 8 times topping up the fluid as you go.

You should then find, that the air is out of your system, and your pedal is back to normal !

Good luck !

A FixYa rating would be nice.... Thank you ! John.



Posted on Feb 10, 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

  • 2187 Answers

SOURCE: Bleeding Clutch Cylinder with no bleeder screw

I have not tried myself but see if the link below will work for your case. It is not the same model as you have but most vehicles have the same components for the non electronic parts. http://www.2carpros.com/forum/1988-dodge-dakota--bleding-air-out-of-clutch-master-cylinder-vt248517.html

Posted on Jun 04, 2009

  • 1 Answer

SOURCE: 1999 pontiac sunfire bleeding clutch

my 1999 pontiac sunfire drivers door latch is broke can not close the door. i have it pulled shut? how much will a used latch cost, or even 3 bolts for it? all the auto stores/ jumk yards are closed for me to call

Posted on Aug 01, 2009

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1993 4wd. Why aren't brakes working?


Does the brake pedal go to the floor? Or does it stay up, and is hard to push...? Did you bleed the master cylinder? Also, you will need to bleed all 4 wheels connection to the brake wheel cylinders...you must start with the rear, farthest from the master cylinder, then other rear, then front farthest from the master cylinder, then other front...the bleeding of each line is a must, since you switched the master cylinder.

Sep 14, 2015 | GMC Sierra 1500 Cars & Trucks

1 Answer

Do you have to bleed master cylinder on 106 if master cylinder resorvior is empty


You don't have to bleed the master cylinder, you are going to have to prime it and bleed your entire brake system again. When you are bleeding your breaks you never let the reservoir run dry or the master cylinder starts to push air through the entire system. Not just on the line running to your front caliper. This is probably the reason you aren't getting pressure even when you pump the breaks.

Sep 26, 2017 | 1992 Toyota Pickup

1 Answer

1990 jeep wrangler bleeding breaks


Hi there:
I suggest to check this procedure, when the hydraulic brake system must be bled whenever a fluid line has been disconnected because air gets into the system.

A leak in the system may sometimes be indicated by a spongy brake pedal. Air trapped in the system is compressible and does not permit the pressure applied to the brake pedal to be transmitted solidly through the brakes. The system must be absolutely free from air at all times. If the master cylinder has been overhauled or a new cylinder has been installed, bleed the cylinder on a bench before installation. When bleeding brakes, bleed at the wheel most distant from the master cylinder first, the next most distant second, and so on. During the bleeding operation the master cylinder must be kept at least 3 / 4 full of brake fluid.


The ABS bleeding procedure is different from the conventional method. It consists of the following three steps:
Step 1: Conventional manual brake bleed.
Step 2: Bleeding the system using the DRB scan tool.
Step 3: An additional conventional manual brake bleed.

The recommended ABS bleeding procedure is as follows:
  1. To bleed the brakes, first carefully clean all dirt from around the master cylinder filler cap. Remove the filler cap and fill the master cylinder with DOT 3 brake fluid to the lower edge of the filler neck.
  2. Bleed the master cylinder first. Have a helper operate the brake pedal while bleeding each master cylinder fluid outlet line. Do not allow the master cylinder to to run out of fluid,as this will allow additional air to be drawn into the cylinder.
  3. Bleed the brake system in the following sequence:
    1. Master cylinder
    2. HCU valve body (at fluid lines)
    3. Right rear wheel
    4. Left rear wheel
    5. Right front wheel
    6. Left front wheel
  4. Clean off the bleeder connections at all four wheel cylinders. Attach the bleeder hose to the right rear wheel cylinder bleeder screw and place the end of the tube in a glass jar, submerged in brake fluid.
  5. Open the bleeder valve 1/2 - 3/4 of a turn.
  6. Have an assistant depress the brake pedal slowly and allow it to return. Continue this pumping action to force any air out of the system. When bubbles cease to appear at the end of the bleeder hose, close the bleeder valve and remove the hose.
  7. Check the level of fluid in the master cylinder reservoir and replenish as necessary.
  8. After the bleeding operation at each wheel cylinder has been completed, fill the master cylinder reservoir and replace the filler plug.

Do not reuse the fluid which has been removed from the lines through the bleeding process because it contains air bubbles and dirt.


  1. Perform the "Bleed Brake'' procedure with the DRB II scan tool. This procedure is described in the DRB II software information and diagnostic guide.
    1. Attach the DRB II scan tool to the diagnostic connector.
    2. Run the Bleed Brake procedure as described in the DRB II tester guide.
  2. Repeat the conventional bleeding procedure as previously outlined.
  3. Fill the master cylinder reservoir to the proper level.
  4. Check the brake operation.


Hope this helps.

Apr 21, 2013 | Jeep Wrangler Cars & Trucks

1 Answer

How to change a clutch master cylinder on a 2006 toyota tacoma


remove line from the side of clutch master cylinder two bolts or nuts on firewall inside vehicle is a pin on the upper side of clutch remove and pull old unit out bench bleed new master by filling and pressing in on the piston of the master cylinder. if you dont have a hose fitting dont bench bleed bleed it in vehicle( this method takes longer) install back in vehicle and hook it all back up torque bolts to 25 ft lbs then bleed the slve cylinder from under vehicle near back of motor just like bleeding brakes pump up hold and release the line pressure by opening valve on slave cylinder.

Apr 06, 2013 | 2006 Toyota Tacoma

2 Answers

Replaced master cylinder and wheel cylinders, bleed master cylinder and put all back together. Started bleeding brakes. Cant get any pressure at pedal what should I try?


First bench bleed the master cylinder. Or if its still on the car do this, have some one pump the pedal hold and open one line,do this three times, move to the next line pump three time hold and open the line. Hows the pedal. getting firmer no go ahead bleed as usual. let me know we can fix this together

Apr 22, 2011 | Volkswagen Beetle Cars & Trucks

1 Answer

How to bleed brakes on 1997 Saturn


The brake system bleeding procedure differs for ABS and non-ABS vehicles. The following procedure pertains only to non-ABS vehicles. For details on bleeding ABS equipped vehicles, refer to the ABS procedures later in this section.

WARNING Make sure the master cylinder contains clean DOT 3 brake fluid at all times during the procedure.
  1. The master cylinder must be bled first if it is suspected of containing air. Bleed the master cylinder as follows:
    1. Position a container under the master cylinder to catch the brake fluid.
    2. Loosen the left front brake line (front upper port) at the master cylinder and allow the fluid to flow from the front port.
    3. Connect the line and tighten to 24 ft. lbs. (32 Nm).
    4. Have an assistant depress the brake pedal slowly one time and hold it down, while you loosen the front line to expel air from the master cylinder. Tighten the line, then release the brake pedal. Repeat until all air is removed from the master cylinder.
    5. Tighten the brake line to 24 ft. lbs. (32 Nm) when finished.
    6. Repeat these steps for the right front brake line (rear upper port) at the master cylinder.
WARNING Do not allow brake fluid to spill on or come in contact with the vehicle' finish, as it will remove the paint. In case of a spill, immediately flush the area with water.
  1. If a single line or fitting was the only hydraulic line disconnected, then only the caliper(s) or wheel cylinder(s) affected by that line must be bled. If the master cylinder required bleeding, then all calipers and wheel cylinders must be bled in the proper sequence:
    1. Right rear
    2. Left front
    3. Left rear
    4. Right front
  2. Bleed the individual calipers or wheel cylinders as follows:
    1. Place a suitable wrench over the bleeder screw and attach a clear plastic hose over the screw end.
    2. Submerge the other end in a transparent container of brake fluid.
    3. Loosen the bleed screw, then have an assistant apply the brake pedal slowly and hold it down. Close the bleed screw, then release the brake pedal. Repeat the sequence until all air is expelled from the caliper or cylinder.
    4. When finished, tighten the bleed screw to 97 inch lbs. (11 Nm) for the front, or 66 inch lbs. (7.5 Nm) for the rear.
  3. Check the pedal for a hard feeling with the engine not running. If the pedal is soft, repeat the bleeding procedure until a firm pedal is obtained.
zjlimited_349.jpg

Fig. 1: Loosen the front brake line in order to bleed the master cylinder

zjlimited_350.jpg

Fig. 2: Connect a bleed hose from the bleed valve on the front caliper to a jar of brake fluid

zjlimited_351.jpg

Fig. 3: Always follow the lettered sequence when bleeding the hydraulic brake system





Hope this helps to solve it; remember to rate this answer.

Dec 29, 2010 | 1997 Saturn SL

1 Answer

How to change the master brake cylinder


HI
Remove the 2 brake lines from the master cylinder,,,,
Remove the 2 bolts that hold the master to the brake booster...
Remove the master cylinder...
Install the new mastercylinder...
install the 2 bolts removed....
bleed the master with bleed kit that comes with the new master...
install the 2 brake lines..
bleed brakes.....
Let me know if i can help more

Jul 15, 2010 | 1992 Chrysler Town & Country

2 Answers

Can not get a pedal, replaced master cylinder twice, bled everything, no pedal...can't seem to get fluid out of the 3 front ports on the master cylinder...could both master cylinders be defective, or am I...


Did you bleed the master cylinder before you put it in the vehicle?This usually makes it easier to bleed the entire brake system if this is done before you install the master cylinder.Other wise all you have done is put air in the brake system.The master cylinder kit usually comes with a bleeder kit.This is for bench bleeding the master.Hope this helps.Good luck.

Dec 31, 2009 | 2001 Chevrolet Tracker

3 Answers

I replaced the mst cyl. how do I bleed the ABS sys to get the air out? 97 ford F-150


You bleed it like you would a normal system but you must use the boost assist to do it, in order to do this start the truck pump the brakes three times and bleed that cylinder farthest away from the master cylinder do this twice or until you get clear fluid to run out. add fluid for every cylinder before moving on. Do this for each wheel and after doing all four wheels you should be ready to go. If it feels mushy you will have to bleed it a second time. But you must have the engine running to bleed the brakes unless you have a power bleeder. You may want to bleed the master cylinder first to do this add fluid to the cylinder then pump brakes three times crack the front line open and allow it to bleed air rout of the line do the same for the rear master cylinder once yo get solid fluid from the master cylinder you can dot the same for the ABS then do the wheel cylinders and wheel calipers. This needs to be done sometimes, be sure to never let the master cylinder run out of fluid and check it each time you bleed the wheel cylinders.

Nov 16, 2009 | 1997 Ford F150 Regular Cab

1 Answer

1993 how do you properly bleed a new master cylinder


First You Bench Bleed The Master Cylinder Before Installation. Use The Provided Plugs Given With The New Master. Use Screw Driver And In And Out Motion You Bleed Until No Bubbles. Then After Installation, Crack Line And Have Buddy Slowly Push Down On Pedal. Close Line. Repeat To Other Line. You're Done

May 02, 2009 | 1990 Pontiac Trans Sport

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