Question about 1992 Ford F250

1 Answer

1992 F250 460 cid automatic 2w drive 85000 mi. Just replaced my master cylinder, all 4 brakes, and both front rotors. Afterward I blead the brakes and got bubbles out of fluid. Problem is : when not moving and engine running, I can hold the brake pedal with hard pressure and it goes to within one inch of the floor. I tried pumping it to see if it would come up...nope! When I am driving and braking normally, everything works great. Pedal goes about half way down. Only when I really press down hard does the pedal keep on going. Any ideas?

Posted by on

Ad

1 Answer

There is never a test or reason to pump your brakes

Accomplishes absolutely nothing.

There is no pressure in a braking system at all,
until you SLOWLY apply the brake pedal.

Then less than 1" off movement in the master cyl,
will develop 600 to 1800 lbs at the wheels

Release the brake pedal, the system goes to zero,
IT DOES NOT HOLD ANY PRESSURE

To answer your question

You not suppost to press the pedal hard
The saying goes--you apply the brakes,
not force the pedal arm and pin into the
vacuum booster, as though you want to damage it

When your driving what happens ?
You have higher manifold vacuum and
thus your pedal is normal,why the VACUUM
brake booster

Posted on Mar 31, 2011

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

2005 silverado brakes sticking front only after driving little


I had the same problem and replaced both calipers with no change, I figured it was the master cylinder. When I pulled off the master cylinder I saw the vacume booster had about 2 cups of brake fluid in it which leaked from the front of the master cylinder. I replaced master cylinder and vacume booster and brakes work great now.

Aug 30, 2012 | 2001 Chevrolet Silverado 1500

1 Answer

1999 Ford E350 van problem: brake pedal is soft; have replaced master cylinder, rear wheel cylinders, rear brake shoes and drums, front calipers, rotors and discs; have bled master cylinder before...


Good question, on the antilock system is a bleader too and bleade it the same way you bleade the caliper. After all is done adjust the rear brakes, they should have a drag to them.

Feb 23, 2011 | 2007 Ford E-350 Super Duty Length XLT

1 Answer

I have a 96 silverado with abs, a friend owed me some money so i told him to put new front brake pads and get the front rotors and rear drums turned, he finshed the job and called me and said my brakes are...


PRe bleed the master cylinder, using a kit that hooks up to the brake lines connection and the other end goes into the fluid reservoir. Bleed until no bubbles. then reinstall brake lines, one at a time, and then continue bleeding the system. DO NOT let the fluid run low in M/C or start all over again. Kit can be purchased at after market parts stores.

Oct 09, 2010 | Chevrolet 1500 Cars & Trucks

1 Answer

I have a 1992 corolla brake peddal pulsalating?


if you can drive 50 mph and push on the brake pedal lightly and the steering wheel pulsates, the front rotors are warped. new does not mean straight, and cheap never means good. If you feel it in the pedal or your **** then the most likely problem is the rear brakes,.

Jun 03, 2010 | 1992 Toyota Corolla

1 Answer

Pistons in both front calipers stay out, both calipers replaced


You may have a leak in the booster or master cylinder. You can put a pressure tester on the system to test for leaks. It does sound like you have an air leak.
You can try to bleed the master cylinder, then slave cylinder, then brake lines.

Aug 24, 2009 | 1993 Oldsmobile Achieva

2 Answers

Just replaced the calipers and blead the brakes. Pedal still travels clear to the floor.


Did you bleed the wheel furthest away from the master cylinder? THen next furthest, to closest last. Did u make sure the master cylinder never got low enough to draw in air? To bleed, Pumo brakes 3x, holding pedal down 1/2 way, while bleeder is opened, let air/fluid flow, shut bleeder as flow diminishes so no air gets in the line. Is the car running when u bleed brakes? It should be. If u are doing all of this u should feel your pedal coming back (getting firm). Let me know how you make out. countrycurt0

Sep 21, 2008 | 1998 Mercury Mystique

2 Answers

97 ford e350 brake pedal goes to the floor...


are your rear drums set up? why did you bleed the brakes. when only when you installed new pads?

Sep 11, 2008 | 2002 Ford E350

Not finding what you are looking for?
1992 Ford F250 Logo

323 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

fordexpert

Level 3 Expert

5546 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...