Ford Ranger Maintaince And Repair Manual page 957

Vehicles with 4−wheel anti−lock brakes require an Anti−lock Brake Adapter (T90P−50−ALA) and Jumper
(T93T−50−ALA) in order to bleed the master cylinder and the Hydraulic Control Unit (HCU). Failure to do
so will trap air in the HCU unit, eventually causing a spongy pedal.
Before performing this procedure, ensure that you have the tools necessary to bleed the master cylinder
and the HCU unit. If the tools are not available, you can still perform the procedure. However, you will
need to tow the vehicle to a professional garage capable of bleeding the ABS system.
1. With the engine turned off, push the brake pedal down to expel vacuum from the brake booster
system.
2. Disconnect the brake fluid level sensor wire from the reservoir.
3. Disconnect the hydraulic lines (use correct tool, a Line Wrench) from the brake master cylinder.
4. Remove the brake booster−to−master cylinder retaining nuts and lock washers. Remove the master
cylinder from the brake booster.
REMOVAL & INSTALLATION
HOW TO USE THIS BOOK
Cutaway view of the master cylinder assembly
Click to enlarge
WARNING
975