OEM Ford E-250 Econoline Brake Booster

Ford E-250 Econoline Brake Booster Parts and Q&A

• Brake Booster
  5C2Z-2005-BA
  Q: How to remove air from the Hydro-Boost power brake booster on Ford E-250 Econoline?

  A:

  A self-bleeding Hydro-Boost power brake booster allows the mentioned maintenance procedure to remove power brake booster air initially detectable through typical driving conditions that eliminate residual air in the system. As a first step add Motorcraft Mercon ATF XT-2-QDX or -DDX or a Mercon equivalent to the power steering oil reservoir. To avoid starting the engine please remove the Powertrain Control Module (PCM) relay after which crank the engine for several seconds. End the maintenance session by inspecting the power steering oil reservoir fluid level then add more fluid if needed before putting back the PCM relay. Crack the engine until it starts and during operation make two complete steering wheel stops before shutting the engine down. Use the brake pedal to discharge the accumulator several times and proceed with the previously done steps until the system stops foaming. Engine operation should stop when foam forms and the foam needs several minutes to disappear. The system cleaning process will continue until the expansion chamber stops creating foam.
• Brake Booster
  XC2Z-2005-AA
  Q: How to service and repair the vacuum brake booster on Ford E-250 Econoline?

  A:

  Starting a vacuum brake booster repair process requires disconnecting the battery ground cable first. First brake pedal depression destroys the power brake booster vacuum before you take off coolant reservoir bolts and place the reservoir in position. You should discard the Brake Master Cylinder retaining nuts because these are torque prevailing type nuts which cannot be reused before removing the brake master cylinder. The service starts by disconnecting the check valve of the power brake booster while taking out the locking pin from the stoplight switch. The power brake booster nuts require removal after sliding off the brake pedal pin together with the stoplight switch and booster push rod and bushing. When installing do not use the reused master cylinder retaining nuts and execute the removal method backwards.