Lumina V6-3.1L VIN J (2000)
1. Use the following procedure in order to install the two transfer assemblies:
1.1.
Lubricate the transfer tube assembly O-rings with clean brake fluid.
1.2.
Install the transfer tube assemblies (7) into ports of the ABS brake modulator (6).
Push the tube assemblies in by hand to the bottom of the ports.
Important: Refer to Master Cylinder Overhaul for repair of the master cylinder.
2. Lubricate the new banjo bolt O-ring with clean brake fluid.
3. Install the banjo bolt O-ring into,the master cylinder (8) and the ABS brake modulator (6).
4. Use the following procedure in order to install the ABS brake modulator (6) onto the master cylinder (8):
4.1.
Clamp the mounting flange of the master cylinder in a vise.
4.2.
Insert the transfer tube assemblies (7) into the master cylinder ports.
4.3.
Hold the ABS brake modulator and rock the modulator into position on the master cylinder.
Notice: Refer to Fastener Notice in Service Precautions.
5. Install two ABS brake modulator to master cylinder banjo bolts (2).
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Tighten the banjo bolts to 24 Nm (17 ft. lbs.).
6. With the ABS brake modulator positioned upside down, and the gears facing you, rotate each ABS brake modulator gear clockwise until
movement stops.
The procedure causes the following conditions:
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The pistons are positioned very close to the top of the modulator bore.
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The brake bleeding procedure is simplified.
7. Install the ABS brake motor pack (1) onto the ABS brake modulator/master cylinder assembly.
8. Install the gear cover (3) to the ABS brake modulator/master cylinder assembly. Refer to Modulator Gear Cover Replacement.
9. Bleed the system. Refer to Hydraulic Brake System Bleeding.
Brake Modulator/Master Cylinder Assembly Replacement
Removal Procedure
Caution: To help avoid personal injury, due to a retained load on the brake modulator, the Gear Tension Relief function of the scan tool must be
performed prior to removal of the ABS brake modulator/master cylinder assembly.
