RAM 3500 Truck 4WD V10-8.0L VIN W (1997)
Hydraulic Control Unit: Service and Repair
Antilock Valve Replacement
Front Antilock Valve Bleeding
NEW VALVE
If a new front antilock valve assembly was installed, bleed new valve as follows:
Front Antilock Valve Bleed Valve Stem & Plug
1. Loosen bleed plug on new front valve about 1/4 to one full turn. Plug must be open to fully bleed upper and lower sections of front antilock
valve.
2. Remove cap from bleed valve stem.
Front Antilock Valve Bleed Tool
3. Install Valve Depressor Tool 6670, or equivalent on bleed valve stem by sliding notched side of tool onto boss that surrounds bleed valve
stem.
4. Tighten thumbscrew on bleed Tool 6670, or equivalent just enough to push valve stem inward about 0.51-0.76 mm (0.020-0.030 inch). Stem
must be held inward (in open position) to fully bleed upper section of new valve assembly.
5. Apply brake pedal. Pedal will fall off significantly when bleed plug is properly open and bleed valve stem is correctly unseated (pressed
inward) by tool.
6. Stroke brake pedal rapidly 5 - 10 times. This action will fill upper and lower sections of valve rapidly.
