Thursday, July 14, 2011

Proportioning Valve disassembly for dodge caravan 3.8?


See Figure 1

Click image to see an enlarged view

Fig. Fig. 1: Proportioning valve detail for ABS-equipped vehicles

  1. Using a brake pedal depressor, move and lock the brake pedal to a position past its first 1 inch of travel. This will prevent brake fluid from draining out of the master cylinder when the brake tubes are removed from the proportioning valve.
  2. Raise and safely support the vehicle securely on jackstands.

To prevent possible hydraulic system contamination, thoroughly clean the proportioning valve and brake tubes. Use MOPAR® Brake Parts Cleaner, or an equivalent solvent.

  1. Remove the 4 brake lines from the inlet and outlet ports of the proportioning valve.
  2. Remove the bolts securing the proportioning valve bracket to the vehicle frame rail. Remove the proportioning valve assembly from the vehicle.

To install:
  1. Place the proportioning valve assembly into position on the frame rail. Install the mounting bolts and tighten to 10 ft. lbs. (14 Nm).
  2. Install the chassis brake lines into the proportioning valve assembly. Tighten the brake line fittings to 12 ft. lbs. (16 Nm).
  3. Bleed the brake system.
  4. Lower the vehicle.
  5. Carefully road test the vehicle to verify proper brake system operation.