OEM Ford E-150 Econoline Brake Booster

Ford E-150 Econoline Brake Booster Parts and Q&A

• Brake Booster
  XC2Z-2005-AA
  Q: How to effectively remove air from the Hydro-Boost power brake booster system on Ford E-150 Econoline?

  A:

  The Hydro-Boost power brake booster contains a built-in bleed feature which can be cleared through the steps mentioned below. Start the process by adding either Motorcraft Mercon(r) ATF XT-2-QDX or -DDX or a Mercon(r) equivalent to the power steering oil reservoir. Reposition the Powertrain Control Module (PCM) relay to stop engine start-up followed by several seconds of cranking the engine. Check the power steering oil reservoir fluid level and add fluid if required before placing back the PCM relay. Begin motor operation but after the engine starts turn the steering wheel between stops twice and then shut off the engine. Braking the vehicle several times through pedal presses removes pressure from the accumulator so perform steps again. Stop the engine to wait until the foam disappears if it starts to form. Perform the procedure again to eliminate all air trapped in the system until foaming stops completely.
• Brake Booster
  5C2Z-2005-BA
  Q: How to service and repair the vacuum brake booster on Ford E-150 Econoline?

  A:

  You should start brake booster vacuum service by disconnecting the grounding cable attached to the battery. The first step involves pressing the brake pedal to empty vacuum from the power brake booster after which you should remove the coolant reservoir bolts for safe positioning aside. The torque prevailing type master cylinder retaining nuts require removal because they should be discarded before moving on to remove the Brake Master Cylinder. The next step is to remove both the power brake booster check valve along with the stoplight switch self-locking pin. Pull the stoplight switch together with the booster push rod and bushing from the brake pedal pin before taking out the brake booster nuts to remove the power brake booster. Install the master cylinder while avoiding the reuse of its retaining nuts and executing the reverse steps of removal.