Question about 1985 Ford Econoline

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Brakes not working

We have a 1985 ford econovan(australia) and the brake pedal is going to the floor. Master cylinder is full of fluid. We can hear air when pushing the pedal but cannot seem to locate the brake booster. Does this model have one and where is it situated. Thank you

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Every thing you need to find for the brakes is under the dash.Easiest way to work on the parts is to remove the instrument cluster(gauges)Its been a while since last did one but part of the dash surround may also have to come off.Let me know if you need more help

Posted on Nov 23, 2008

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THE BRAKES- PEDAL GOING TO THE FLOOR - FULL OF FLUID IN MASTER CYLINDER


That sounds like your cups that catch & push the brake fluid are worn out in the master cylinder, get a new master cylinder .

Jan 03, 2015 | Cars & Trucks

1 Answer

No brakes no lines broke


If the brake pedal goes to the floor, and the master cyl is full of fluid, the master cylinder could have failed.

Sep 20, 2012 | 1985 Ford F150

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My brake pedal goes all the way to the floor there is no any brake oil leak i replace the brake master cylinder i bleed the system but still the same what is the correct procedure to bleed brake system...


fill master cylinder, start at right rear. the way I do it is make sure cap is back on master cylinder. pump the brakes a few times then hold them. have another person open the bleeder valve at the tires until brakes go to floor. hold them down until bleeder is retightened but be sure master cylinder is not out of fluid. then go to left rear and do the same procedure, then right front, then left front. check fluid and if air is all out there should be brakes. good-day ! THIS IS HOW I HAVE ALWAYS DONE IT ! heres a little trick of sorts. you can change a master cylinder, and if you bench bleed it first. and no fluid is lost from the master cylinder lines you do not need to bleed the whole system. but make sure cylinder is full of fluid before putting on vehicle and all air is out of master cylinder.

Oct 23, 2011 | 1997 Ford Expedition

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My 1997 chevy 1500 z71 brakes suddenly going all the way to the floor. Checked brake fluid and it was low. Could be wheel cylinder? Master cylinder? or ?


well, check the brake lines for leakage after adding brake fluid to the full mark. If the brake pedal goes all the way to the floor, it's likely there is a leak somewhere after the master cylinder. If the pedal gets hard after adding fluid, and pumping it several times with the car off, then the master cylinder is still ok.

If air has gotten into the master cylinder, it may have to be bled out on a bench, or using a scanner if that's the way your vehicle is.

Bleeding the Brake System (ABS) Auto Bleed Procedure NOTE: Perform a manual bleeding procedure. If the brake pedal height and firmness results are not achieved, perform the auto bleed procedure below.
NOTE: Perform this procedure when replacing the brake pressure modulator valve or electro-hydraulic control unit.
  1. Perform the manual brake bleeding procedure. Refer to Bleeding the Brake System (non-ABS).
  2. Check the master cylinder fluid level often to prevent running the system dry.
  3. Press the brake pedal firmly and run the Scan Tool Automated Bleed Procedure (for Gas engines) once, or the Function Test (for Diesel engines) four times. Make sure to release the brake pedal between each test.
  4. Perform the manual bleed procedure again. This should remove the remaining air from the brake system.
  5. Bleed the system as many times as needed to obtain the appropriate feel of the brake pedal.

Dec 18, 2010 | 1997 Chevrolet K1500

1 Answer

The brake pedal goes all the way down to the floor board


You need a master cylinder if you inspect the wheel cylinders for leaks and find none or check the fluid level and its full.

Jan 12, 2010 | 1985 Ford Thunderbird

1 Answer

1996 Grand Am, no leaks in brake lines, replaced master cylinder, did not bench bleed, but have bled them over and over through the lines, pedal goes all the way to the floor, nothing, please help


Not bench bleeding is a big mistake. You have to bench bleed. I know you dont want to hear this but your gonna have to take that master cylinder back off and bench bleed it. I hope you dont have a.b.s. cause if you do you just pumped it full of air. If that is the case you are going to have to pressure bleed it at a repair shop. after you bench bleed use this process to bleed your brakes start with the wheel farthest from the master cylinder have someone pump the brake pedal slowly about seven times then hold it to the floor. then you open the brake bleeder and air and fluid will come out. then close the bleeder make sure your assistant holds the pedal down to the floor the whole time until the bleeder is closed then have them pump the pedal again another seven times and hold it to the floor open the bleeder then close it again. keep doing this process until you see a clear stream of brake fluid coming out without it spitting air you will be able to tell the difference when the air is gone. then proceed to the next wheel farthest away from the master cylinder. make sure you keep the master cylinder full of fluid while you are bleeding dont let it go dry.

Nov 01, 2009 | 1996 Pontiac Grand Am

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

Brake pedal sinks 1-2 inches while holding


Sounds like your master cylinder is shot. Go to a parking lot, stop, and pump the pedal a bunch of times. Then get out and see if there is any fluid leaks by any of the wheels. That would indicate a brake line leak. My first guess, however, is your master cylinder.

Jun 02, 2009 | 1985 Toyota Pickup

3 Answers

1994 ford explorer will not stop, I have replaced the brake pads,


My vote would be the Master Cylinder.
I had a truck sit for 4 years. After getting running again, it did the same thing you're describing. No brakes. I ended up replacing the Master Cylinder to fix the problem. Just make sure you bleed the system real good.

Mar 25, 2009 | 1994 Ford Explorer Limited

1 Answer

96 Taurus brakes


Presuming you have NO leaks in the hydraulic system,it would be a bad brake master cylinder.What's happening is,the piston inside the master cylinder has rubber seals,and when the pedal goes to the floor,the master cylinder is leaking internally,past the rubber seals.If the brake booster was bad,the symptom would be an extrememly HARD,unresponsive,brake pedal,and the engine would idle terrible (vacuum leak).Good luck.

Jul 10, 2008 | 1994 Ford Taurus

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