Question about 1989 Ford F 350

2 Answers

Brakes Brake pedal goes to the floor.Has to be pumped to get brakes to catch at all,and in a couple of seconds the pedal goes right to the floor again.Doesn't seem to be any leaks or loss of fluid. i have a '89 F-350 dulley. when i pump my brakes the brakes don't catch after flooring them, it sounds like a vaccuum suction when i press on them. i tried bleeding the brakes but they don't have air in them.

Posted by on

  • ebell65 Nov 24, 2008

    I have a 1989 Frod F350 2 wheel drive dually, w heel drive wiha 460 ci gas motor. I recently had the brakes serviced (new front pads androtos, new rear pads and whelel cylinders). The pedal has never been firm since I owned the truck. Recently it has gotten to the point where it is not safe to drive. The pedal goes to the floor. There are no leaks. I just replaced the master cylinder. I bench bled the unit, belad each wheel until no air came out (went thru 3 bottles of new fluid in the process).

    Is there an ABS valve that needs to be bled also? The pedal still goes to the floor. If there is an ABS valve, where is it on this truck? I can't find it.



    What else would cause this. I am at a loss.



    Please let me know your thoughts.



    Sincerely,



    Ed

    ebell65@verizon.net

  • halxss Apr 22, 2009

    91 f350 brakes go to floor changed every thing with no luck

×

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Sergeant:

    An expert that hasĀ over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 208 Answers

Bad seals in the master cylinder

Posted on Jun 22, 2009


  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 4 Answers

Sound like you need a master cylinder

Posted on Jul 31, 2008


Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Brake system all new but pedal goes to the floor


double check the brake master cylinder and brake piston cylinder.

Mar 11, 2015 | GMC Sierra Cars & Trucks

1 Answer

Gday and happy new year hope you may have some advice that may help me with a problem im having i bought a disc brake conversion kit for my 64 bird we fitted up the kit with new lines the ki


First of all, I hope you got a new master cylinder with your disc brake kit. A new master cylinder should be bled before connecting the brake lines and then never allowed to pull in air during the rest of the bleeding process. A couple of fittings ans hoses should have come with the new master cylinder [see the kit listed for a picture]. If the master cylinder has an air bubble, you won't be able to properly bleed the rest of the system.
For the rest of the system you can make up a small catch bottle like the one pictured in the one man brake bleed kit; make sure the hose goes tot he bottom of the catch bottle. You have to cap the master cylinder reservoir before pumping the brakes or fluid will squirt out and all over; brake fluid is a like paint remover. Then start with the brake farthest from the master cylinder and bleed fluid out by having a buddy pump the brakes while you hold the catch bottle above the bleeder port so no air gets back in. [hint, put some pipe teflon tape on the outer threads only, not the inner end of the bleeder screws to seal the threads]. Check the master cylinder level often! If the brakes still are spongy after the first round of bleeding, have a buddy pump up the brake pedal with the bleeder screw closed and hold pressure on the pedal; you then open the bleed port until the pedal goes to the floor; have your buddy hold down the pedal until you close the port. Repeat on all brakes until the pedal is firm.

Jan 26, 2015 | Cars & Trucks

1 Answer

My brake pedal goes all the way to the floor


Brake pedal goes to the floor? When does it happen. That is the most important piece of information. Most brake systems are power assisted via vacuum from the engine. Your brake booster is what makes the "power assist" work. There are some specific times when you will feel your brake pedal "fade" to the floor and it is normal due to the cycle of the brake components operation.If your brake pedal goes to the floor every time you step on it, stop driving and get to a repair facility! If the pedal is working when driving and the vehicle seems to be working as it always has, then chances are there is no concern. To be on the safe side, have it checked the next time you are in for any other type of service.There is a sensor inside most brake reservoirs that activates the indicator light in your instrument cluster when the level is lower than it should be. As your brake pads wear down, the system requires more fluid so the level at the reservoir drops setting the light. Same thing if there is a leak. The fluid level drops and the light goes on. This brake fluid leak would most likely be combined with a spongy pedal or a pedal fade every time you step on the brakes. A leak would also almost always have a wet area around the leak. Sometimes the leak can be internal to a part of the car you cannot see, so don't count on it.One easy way to check most brake boosters and the brake system for leaks is to turn the vehicle off and pump the brake pedal. Every time you depress the pedal you should feel the pedal "height" come up and the pedal get harder. After a few firm pumps of the pedal, hold it down. Leave pressure on the pedal for 20 seconds or so. Does the pedal move slowly (or quickly) to the floor? If so then there is a leak somewhere in the system. Keeping pressure on the brake pedal, start the vehicle. Does the pedal no drop? It should. That is the power assisted vacuum kicking in as the engine starts to run.The bottom line is that we are talking about your brakes. Your life, your passengers lives and the lives of others on the road around you depends on that system working properly. If you have any doubts, or feel uncomfortable, take it in to have it looked at. Know specifically what it is doing so that you can have your repair facility look at what you are feeling and tell you if

Oct 29, 2011 | 1987 Nissan Pickup

2 Answers

Have no brake pressure, pedal goes straight to floor, put on new calipers and pads and bled the lines but I am no better off.


Sounds like a bad brake booster. To test, pump up the brakes with the engine off. While holding the brake pedal down,start the car. The brake pedal should drop a couple of inches and hold. If it doesn't, replace the booster.

Jul 25, 2011 | 1996 Jeep Grand Cherokee

1 Answer

I have installed new front and back brakes,new calipers,brake lines,and now thanks to bad advice a new master cylinder and my pedal still goes to the floor.we have bled the lines many times and tried to...


Have the engine running & bleed the brakes again

Have someone in the vehicle slowly push the brake
pedal,never pump.

When you are driving, do you pump your brakes,NO

Pushing the brake pedal only moves the piston in the
brake cylinder about 1",that is all
That amount of movement will build up to 2,000 lbs
of pressure. So no pumping,does nothing

As the person is pushing the pedal down,someone
else opens & then closes the bleeder valves while the
pedal is still going down.

Then you wait on the person in the car to start over.
Real simple.

Assuming you paid for all that work,why do you have
issues that you didn't have before.

Don't want to discuss what the pros do,but we have
a thousand people on this site every day with problems
that they shouldn't have and are lighter in the wallet

May 23, 2011 | 1994 Mercury Villager

1 Answer

Brake pedal goes to floor on first depression; then pumps up fine


Try this,apply the emergency before stepping on the brake.
If this helps the pedal,the rear brakes are out of adjustment.

Jul 01, 2010 | 2000 Saturn L-Series

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

2 Answers

Brakes


check your brake booster vacuum pipe for leaks otherwise it sounds like your brake booster has failed

Jun 04, 2008 | 1986 Ford F150 SuperCab

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

358 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

60667 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21936 Answers

Fordexpert

Level 3 Expert

5331 Answers

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

Answer questions

Manuals & User Guides

Loading...