Question about 1987 Dodge Dakota

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Brake problems! getting fluid to all lines no air in lines but pedal is almost touching the floor

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SOUND LIKE AIR TRAPPED IN BRAKE SYSTEM OR A FAULTY MASTER CYLINDER OR POWER BRAKE BOOSTER FAILURE.

Posted on May 01, 2010

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Air can be a pain to get out sometimes. Check for striped fitting/bleed screws, if it all check out, it is most likely the master cylinder on the firewall.

Posted on May 01, 2010

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1 Answer

Jeep brakes


It is very difficult to diagnose this problem with the little bit of information you gave. If the brakes are drum brakes check to see if the brake cylinder is working and has no leaks, lift the rubber seals and make sure there are no leaks there, check the brake adjuster make sure that works okay. If everything works and you bled the brakes properly, then the problem is most likely is the master cylinder or the wheel cylinder.



While bleeding the brakes always make sure you check the master cylinder reservoir to make sure the fluid level is up so you do not get air in the brake lines. When bleeding the brakes did you have someone press down hard on the brake pedal hold the pressure on the brake pedal when opening the bleeder then push the brake pedal to the floor keep it there, until you tightened the bleeder, then pump the brakes up and hold it there, while you repeated the bleeding operation by opening the bleeder when the brake pedal go\'s to the floor keep the pedal down until you tighten the bleeder and then pump the brake pedal back up then check the fluid level in the reservoir, keep doing it until the brake fluid shows no sign of air.



If the brake pedal is pumping up during the bleeding process and you made sure you got all the air out of the brakes and then the pedal go\'s to the floor, make sure the fluid level is correct in the reservoir and the bleeder is closed tight and there are no leaks in the lines, wheel cylinder, brake cylinder the brake adjuster is working and master cylinder, and if you still have no brakes then it must be a defective piston in the wheel or brake cylinder, if there is a seal problem with the pistons you will not get any pressure to push the brake fluid. let me know how you are doing.

May 29, 2014 | 1990 Jeep Wrangler

2 Answers

1999 buick century brake pedal goes to floor-put new master cylinder on and blead both brake lines and master cylinder and pedal still goes to floor


Sounds like you may have a hydraulic leak somewhere. Check the rear wheel cylinders and front brake hoses going to the calipers.

Jan 26, 2012 | 1999 Buick Century

1 Answer

We changed the pads, rotors, drums and shoes on our 2001 montana, after we were done the break pedal goes to the floor, we were told to change the master cylinder and did,, but it didnt fix the problem,...


After you change brakes you need to bleed air from the brake lines what you need to do is find the bleeder valve its usually rite beside where the brake line goes in the calipers and looks like a grease fitting get someone to pump the brake pedal 3 or 4 times and hold it while someone else loosens the bleeder valve to drain the air out keep the pedal mashed until you get the bleeder valve tightend back up . Do each wheel until fluid comes out check brake fluid while doing this so it doesnt run out. Hope this helps

Jun 03, 2011 | 2001 Pontiac Montana

2 Answers

The brake cylinder in the right rear tire started leaking. I changed it and bled the brakes., now they won't stop and will go all the way to the floor. where and how do I adjust them? THANK YOU jOE!


You may need to further bleed the brakes. Something pumping to bleed the brakes can **** in air at the brake fluid reservoir. Try using a vacuum pump to **** out brake fluid from the release screw at the brake side. Make sure you always have enough fluid at the reservoir.

Feb 28, 2011 | Chevrolet Caprice Cars & Trucks

1 Answer

II was changing my brake pads and accidently unscrewed the bolt to my break fluid. I finished the pads and went to set the brake and it just went to the floorboard and checked brake fluid. the resivoir was...


WHEN FINISH REPLACING BRAKE PADS.MAKE SURE MASTER CYLINDER COVER ON FLUID LEVEL OKAY.YOU PUMP BRAKE PEDAL UNTIL BRAKE PEDAL GET FIRM HARD.IF BRAKE PEDAL KEEP GOING TO THE FLOOR YOU HAVE AIR IN THE HYDRALIC BRAKE SYSTEM.BRAKE SYSTEM NEED BLEEDING.DONT DRIVE VECHICLE IF BRAKE PEDAL FEEL SPONGY OR GO TO FLOOR.

Oct 20, 2010 | 1999 Nissan Pathfinder

1 Answer

Pedal goes to floor, brakeing minimal. Checked pads/shoes, replaced master cylinder, bled brakes same problem exists.


Somehow air isstill getting into your brake lines, please put more fluid into brake resiviour and have another person check the lines while you are pumping the brake pedal, This should really help

Jan 24, 2010 | 2001 Kia Rio

3 Answers

Break peddle to the floor no resistence behind it, and not stopping well, no noise.


First of all, don't drive with the brakes this way...
Sounds like you've lost the hydraulic pressure in the brake system.
Check the following:
1. Open the hood and check the brake fluid reservoir to make sure it's full of brake fluid. If not, top it off with the recommend brake fluid.
2. Try the brake pedal again, with the car running in PARK, press a few times and see if the pedal "firms up".
3. If it does, press and hold the brake pedal with the motor still running. Look to see if the pedal slowly sinks to the floor or if it's a bit "mushy" or feels ok.

If the pedal sinks to the floor, you've got a major leak in the brake system. This could be from one of the wheel cylinders, from the disk brake caliper piston, a damage brake hose, brake line, a faulty master cylinder, power brake booster.
The best way to check is a visual inspection. Look around each wheel- look for fluid leaks, for signs of fluid where you park, on the axles, under the hood near the brake fluid reservoir, etc.
If after the fluid is topped off, you get a mushy pedal, I would suggest getting the brakes "bled". Bleeding the brakes simply means getting all the air out of the brake lines. (Air compresses where brake fluid won't- if the pedal is mushy it's got air.)
If you've not done brake work before, I highly recommend taking it to a local mechanic to help you out. You really want to KNOW that your brakes are going to be there when you need them. So if in doubt have a mechanic check it out.

Jan 18, 2010 | 2001 Toyota Echo

3 Answers

Replace brakes. now they go to the floor. bled air


When you fixed the brakes, did you take the lid off the master cylinder. I just wonder if you spilled out your brake fluid. The only reason the pedal should go to the floor is if the brake fluid is gone or the master cylinder is not working. Check the fuse. Check the brake fluid level. The pedal only goes to the floor if there is no back pressure in the lines between the master cylinder the lines to the brake pistion on the calipers. Please give me a good ratin and keep me informed.

Jul 07, 2009 | 1999 Cadillac DeVille

3 Answers

Brakes are spongy,light keeps coming on,even after bleeding them


If there are no leaks from wheel cylinders, calipers and lines, likely there is a bypass condition in the master cylinder. If so, replace it.

Jun 25, 2009 | 1989 Plymouth Voyager

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