Ranger 2WD V6-182 3.0L (1995)
Brake Bleeding: Service and Repair
4 Wheel Anti-Lock Brakes (4WABS)
NOTE: The anti-lock brake system must be bled in two steps.
1. The brake master cylinder and Hydraulic Control Unit must be bled using Anti-lock Brake Adapter T90P-50-ALA and Jumper T93T-50-ALA. If
this procedure is not followed, air will be trapped in the HCU which eventually leads to a spongy brake pedal.
ANTILOCK BRAKE ADAPTER CONTROLS
Item
Part Number
Description
1.
T90P-50-ALA
Anti-Lock Brake Adapter (Part of T90P-50-ALA)
2.
--
Bleed/Harness Selector (Part of T90P-50-ALA)
3.
--
Green "Motor On" Lamp (Part of T90-50-ALA)
4.
--
Red "Motor Off" Lamp (Part of T90P-50-ALA)
5.
--
Valve Button (Part of T90P-50-ALA)
6.
--
Abort Button (Part of T90P-50-ALA)
7.
--
Motor Start Button (Part of T90P-50-ALA)
2. To bleed the brake master cylinder and HCU, disconnect the 40-pin plug from the Electronic Control Unit and install the anti-lock brake adapter to
the wire harness 40-pin plug.
a. Place the bleed/harness selector in bleed position.
b. Turn the ignition switch (11572) ON. At this point the red OFF indicator on the adapter should turn on.
c. Push the motor button on the adapter down. This starts the pump motor. The red OFF indicator turns off and the green ON indicator turns on.
The pump motor will run for 60 seconds once the motor button is pushed (you do not need to hold the button down). If the pump motor is to be
turned off for any reason before this 60 seconds has elapsed, push the abort button and the pump motor will turn off.
d. After the first 20 seconds have passed, push and hold the valve button for 20 seconds. This bleeds any trapped air from the brake master
cylinder and HCU.
e. The pump continues to run for an additional 20 seconds after the valve button is released.
3. Bleed the brake lines in the following order:
^
Right rear
^
Left front
^
Left rear
^
Right front
