Brake Pressure Modulator Valve

Modulator Exploded View:

Modulator Removal:

WARNING! Before removing the modulator-to-power unit high-pressure line, be sure to relieve the high pressure fluid from the maintenance bleeder. Relieving Accumulator/Line Pressure


CAUTION:

^ Be careful not to bend or damage the brake pipes when removing the modulator unit.
^ Do not spill brake fluid on the car; it may damage the paint; if brake fluid does contact the paint, wash it off immediately with water.
^ To prevent spills, cover the hose joints with rags or shop towels.
^ Before reassembling, check that all parts are free of dust and other foreign particles.
^ Make sure no dirt or other foreign matter is allowed to contaminate the brake fluid.
^ Do not mix different brands of brake fluid as they may not be compatible.
^ Do not reuse the drained fluid. Use only clean DOT 3 or 4 brake fluid.
^ When connecting the brake pipes, make sure that there is no interference between the brake pipes and other parts.


1. Drain the brake fluid from the modulator.
2. Remove the intake air duct.
3. Remove the emission control box.
4. Disconnect the solenoid connector.
5. Disconnect the seven brake pipes from the modulator.
6. Disconnect the brake hose from the modulator reservoir.
7. Remove the clamp from the modulator bracket.
8. Loosen the two mounting bolts and remove the one mounting bolt and the modulator.

Hydraulic Connections:

9. Install the modulator unit in the reverse order of removal noting the position of the brake lines.
10. After installation, fill and bleed the hydraulic system