Question about 1994 Ford F250 Supercab

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No pressure when appling break pedal

When I press the brake pedal it goes to the floor

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Check your brake wheel cylinders. you'll probablly find one is stuck or leaks. replace wheel cylinder

Posted on Jan 10, 2009

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Break pedal goes straight to the floor. ABS & Break light is on


the problem is in the brake master cylinder or brake system you have a problem , probably in a leaking line or cylinder and there is probably no oil in the reservoir at all
The abs light has been telling you for a year that you have a brake problem but you happily ignored that signal and put yourself and others at risk
You will be incapable of fixing this fault yourself so take it to an accredited brake shop specialist and have the job done properly

Jan 25, 2016 | 2000 GMC Jimmy

2 Answers

My brake pedal slowly losing pressure goes to the floor and then I have to pump it up again


If you break fluid level is correct and your break pedal goes down to the floor means that your master cylinder is going bad and you might loose your breaks completely if not checked or replaced. Your breaking system is down to the last O ring inside the master cylinder, once that rubber O rings goes you will not have any breaks at all. Master cylinders have a number of rubber O rings that work like a plunger or piston that produce pressure within the breaking system. When the first one wears down due to age, your pedal begins to loose break pressure and you have to pump your breaks several times to gain breaking. You are now down to the last rubber O ring and a warning that your master cylinder needs to be checked. You can still use your breaks but only for a few days before the other rubber O ring gives out too. Once both O rings give out you completely loose your breaks.

Apr 12, 2015 | Cars & Trucks

2 Answers

Why do i have loss of brake pressure


Long shot: Bad master cylinder - Typically the brake pedal will slowly sink to the floor. On early 2000 vintage Chrysler products you need to check brake lines as they have been known to rust (and fail catastrophically)

Jul 04, 2014 | 2003 Jeep Wrangler

1 Answer

Breake light stays on, low brake pressure


There is a recall on the brake reservoir. Call Ford.

Jan 13, 2013 | 2002 Ford Escape

1 Answer

LOSING PRESSURE WHEN I PRESS BRAKE PEDAL, BUT NO OUTSIDE LEAKS


check the brake pads. When they start to wear down, they can have extra play in the pedal causing you to have to press further or pump them. If they are still loosing pressure, check the fluid levels and check again for leakage all through the lines, both front and back.

Jan 23, 2012 | 1999 Volkswagen Passat

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...


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

Mar 31, 2011 | 1992 Ford F250

2 Answers

Break peadle wont hold pressure


U are going to need a new brake master cylinder, the internal seals are leaking and allowing the fluid pressure to leak down, this why the sinking pedal

Jan 10, 2010 | 1994 Ford Crown Victoria

2 Answers

Brake pedal still goes to floor 2000 GMC Jimmy


It's very possible to be the master cylinder, the o-rings on the piston could be worn, letting the fluid seep back through instead of getting full pressure through the lines. Could also be the brake booster.
Try changing the master cylinder first, which is cheaper and easier, and see if there is a difference, you'll need to bleed the brakes again.
To check the booster,
With the engine off, pump the brakes until the pedal is hard, then hold pressure on the brake pedal and listen for air escaping, or the pedal goes slowly to the floor, Do that after the master cylinder has been changed, at least that will be eliminated.

Sep 15, 2009 | 2000 GMC Jimmy

1 Answer

EMERGENCY BRAKE PEDAL GOES DOWN TO THE FLOOR WHEN ENGAGED


sounds like you have a worn set of park break shoes. they are located inside /behind the read rotors. if you remove the rotor and the shoes look fine then you can adjust them with the little star gear located on the bottom of the brake shoes.

Apr 28, 2009 | 2001 GMC Yukon

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