Question about 2002 Ford E250

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Soft brake pedal e250

Changed master clyinder

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 92 Answers

SOURCE: 04 free star soft pedal has new master cylinder pads and rotors

the master cyl must be filled and bled before install.after installing new bled master cyl,bleed all calipers.once you are sure there is no air left in system then you will need a scan tool to perform a abs service bleed.if you do perform the abs service bleed with a scan tool the brake pedal will be soft and start to fade.

Posted on Nov 12, 2008

97crownvic
  • 28 Answers

SOURCE: How to change a master cylinder on 99 e250

i do agree with the haynes manual.

First off, pb blaster is your best friend for brake line bolts. You want to **** as much of the brake fluid out of the resivour as you can, Then you need to get the brake lines off the master cylinder that is on there. make sure you use the right size flare nut wrench when you are taking the lines off. rounding off brake line bolts is not fun, trust me. once the lines are off, ( turn counter clockwise) Just make sure you have a towel to put under the brake lines. for excess fluid. then with a ratchet, and extension, and socket you need to take the master off the brake booster. Also disconnect any electrical connectors and keep them clear ofthe brake fluid. When you have the 2 bolts out of the brake booster, the master should pull out and then your ready to work on installing the new one. when you get a new ,master, you can either bench bleed it, or if you want to, you can also install the new one, line up the hole in the brake booster, put the 2 bolts back on, then you need to bleed the master. Most come with instructions.

  1. Begin by removing the cap.
  2. Follow the directions that come with the kit to select the suitable adapters, and then connect the adapters and tubes to the ports on the cylinder. The other ends of the tube extend down into the master cylinder, and are held in place by a plastic clip.
  3. With the bleeder kit installed, fill the master cylinder about halfway with new brake fluid. Use a large screwdriver to depress the valve assembly inside the master cylinder. If you do not have a vise you can mount the master cylinder on the vacuum brake booster and bleed the master cylinder.
  4. Small bubbles will appear in the fluid. Continue working the valve assembly until no more bubbles appear. This indicates that the cylinder has been thoroughly bled.
once it is bled then you hook up the brake lines, and bleed all the brakes. starting with the furthest from the master cylinder. Passenger rear, driver rear, passenger front, driver front. make sure you check the brakes to make sure there is no air, better to be safe then sorry. also, check anything you had disconnected, to make sure it is not leaking.

In simple terms, by just looking at it, you can figure out how to do the master cylinder, but to be safe, get a repair manual.

Posted on Mar 23, 2009

emissionwiz
  • 75814 Answers

SOURCE: brake pedel pushes to the floor

pump the pedal about 10 times and see if it comes back up, u need to pump the caliper pistons out after a brake job.

Posted on Jun 27, 2009

emissionwiz
  • 75814 Answers

SOURCE: 1999 Ford Taurus, replaced leaking master

There is a special tool required to bleed the brakes, it plugs into the ABS hydraulic control under the hood and holds the ABS valves open to remove the trapped air during bleeding, u will need to have the dealer bleed the brakes, they are most likely the only ones that will have this special too, but u can try an outside shop, I am sure Snap on tools makes this tool in the aftermarket tool catagory..

Posted on Dec 18, 2009

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  • 5495 Answers

SOURCE: I have a 2000 expedition with a soft brake pedal.

Hello, Some of these systems require a Power Brake Bleeder to clear the lines of air. The bleed routine is to go from the farthest to the closest axle on bleeding. Do passengers rear, drivers rear, passengers front, then finally drivers front.

You may have a problem with the valving in the ABS unit. You would need line pressure gauges to measure what is going on inside the unit. You may be able to rent a Power Bleeder or get one free with a deposit at Autozone, Oreillys, or Advance to name a few.

The ABS can also be scanned with the proper scanner. You may be able to rent a tool for this or again check with the Autoparts stores.

Posted on Jan 17, 2011

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This sounds like a vacuum or hydrolic issue. If The pedal is spongy soft while its running it indicates air in the brake line, or faulty master cylinder, or faulty brake booster. A faulty master cylinder would get hard after a few pumps of the pedal. Since the pedal is hard when it is shut down, it makes me lean toward the brake booster.

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But bleeding should always be done at the furthest bleeder valve first, and to save time, you can just leave the bleeder open and put your finger over it before the pedal is lifted, like a one way valve.
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