Question about 1994 Ford F350 Crew Cab

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1994 F350 7.5 Dually 2wd I replaced the master cylider with a rebuilt. New rear hubs and shoes. I have bled the systen 2 separate times per repair manual. There is no brake fluid leaking any where. Problem is when engine is started brakes are spongy and will go to floor. With engine off the pedal will pump up and feel normal soon as you start engine pedal goes to floor. Could the rebuilt master be bad?

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I have the same problem,, put all new brake components on truck, needed it anyway,, found out that the booster is not designed for a diesel application,, ford made a model change for the diesel,, number from ford is F 5 T Z - 2005 CA a zero loss booster,, have ordered on will put on when arrives, $240. good luck,,

Posted on Oct 02, 2010

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I have a 23 t bucket and i cant get a brake pedal.when i bought it had very little brake so i replaced rear shoes and cylinders,front pads and calipers,all new lines and the master cylinder


Once you have bled the air from the brake lines,clamp off the front brake hoses carefully.Does the pedal feel better now?
Then the pad /caliper fit is allowing too much play.Is the pedal the same?Then clamp the rear hose and try the pedal.Is it fine with the rear hose clamped?If so we now know the problem is at the rear brakes.One common low pedal rear brake cause is brake shoes that do not fit the drums.Remove the drums and look at the shoes,are they showing contact wear fully or just in the middle of the shoe?Remove a shoe and place it in the drum.Can you rock the shoe against the drum surface?Once drums have been resurfaced,the shoes will not fit fully against the drum allowing the shoe the flex when applying pressure to it and this can easily create a low soft brake pedal. Of course rear brake adjustment must be correct once brake shoe contact is correct.To correct brake shoe contact,have your shoes re arc-ed to fit resurfaced drums or install new drums.Don't overlook brake master cyl /brake pedal push rod adjustment too.

Jun 24, 2017 | Cars & Trucks

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2006 Ford F350 4wd dually. Had ABS light come on. Found rear brakes bad. Replaced roters, calipers, brakes, brake lines and all new seals in rear dif. Rebuilt front dif, new seals, new brakes, roters,...


It doesn't cost anything to ask a question at a ford dealership . I would call and just explain what's going on. That one has me stumped. Good luck !!

Oct 29, 2013 | 2006 Ford F 350 Super Duty

4 Answers

Brake pedal goes nearly to floor front pads, calipers, brake hoses changed, rotors turned Master cylinder changed, brake booster check valve changed rear brakes checked, drums good no ridge, shoe's...


I would go with not bled correctly

The booster should hold up with a hard pedal until
you start the engine, then vacuum causes it to move
down when pressing on the brake

Sep 16, 2011 | Saturn SC Cars & Trucks

1 Answer

I put 2 front brakes shoes on my 1995 Nissan Maxima,what is the correct way to bleed my brakes?Is their any order that i need to follow?


Did you open the bleeder screws at all. If not you may not need to bleed the brakes just pump the pedal to bring the caliper pistons out and your pedal should feel fine. If you just want to blled anyways open all your bleeder srews and as the fluid level in your brake master cylider goes down refill with new dot 3 brake fluid (do not alow the master cylider to drain completely). Close bleeders when you get clean fluid through. Start at passenger rear corner and have a buddy press the brake pedal down. open bleeder, close bleeder after squirt of fluid then have buddy release pedal. Do this a couple of time per corner. Go from pass rear to drivers rear then pass. front ending with driver front. You just flushed your brake fluid. Hope this helps.

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1 Answer

Have a Mercury sable with little brake pressure. Just got done putting in the second master cylinder. They were rebuilt ones.I had also bench bled them.Wondering if there is some thing I'm missing.


if yo u just replaced the master you need to bleed all wheels starting from the r/rear l/rear r/front l/front , do it 2-3 times and make sure the master cylinder is full at all times

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1 Answer

I'm having trouble getting rear rotors off of a 1999 F350 4x4 dually. I can't figure out how to get the snap ring off.


snap ring? Its a full floater! Take bolts off end of shaft pull shaft out,remove bearing lock nut (the correct socket works so sweet!), pull hub and rotor off, The studs hold the rotor to hub or some have external torx bolts that hold it to the hub.Remove those and you may need to tap hard with a hammer to separate. Where is that snap ring?
You will need new seals,and studs are a good idea,how do those parking brake shoes look?

Apr 24, 2009 | Ford F-350 Cars & Trucks

1 Answer

1992 Ford F350 Dually Diesel Truck Brake System problem.


Adjust your rear brake shoes. Then rebleed the system. Start at the master cylinder Bleed master first then the wheel furthest away from the master (right rear then left rear then right front then left front. Do that and your pedal should be good.

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2 Answers

1989 Ford F350 2 wheel drive dually 460 ci gas motor


5 Inspect Brake Fluid Type Brake fluid loss or contamination grey_line.gif 10 Inspect Master Cylinder (Brake System) Worn or leaking brake master cylinder. grey_line.gif 11 Inspect Brake Power Booster Damaged booster vacuum line/check valve, or diaphram

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