Hummer H3. Manual — part 650

Fig. 41: View Of Brake Pressure Modulator Valve & Bolts
Courtesy of GENERAL MOTORS CORP.

6. Remove the mounting bolts for the brake pressure modulator valve (BPMV) (1).

7. Remove the mounting bolt (6) for the fluid level sensor.

8. Remove the bracket (5) for the fluid level sensor wiring harness.

IMPORTANT: When removing the BPMV from the brake master cylinder,

ensure the locating pin remains in the brake master cylinder
body.

2007 Hummer H3

2007 BRAKES Antilock Brake System - H3

9. Remove the BPMV and module assembly (2) from the brake master cylinder.

10. Remove and discard the gasket (3) from the brake master cylinder.

Installation Procedure

Fig. 42: View Of Brake Pressure Modulator Valve & Bolts
Courtesy of GENERAL MOTORS CORP.

1. Install a NEW BPMV and module assembly gasket (3) to the master cylinder.

IMPORTANT: DO NOT re-use the BPMV gasket.

2007 Hummer H3

2007 BRAKES Antilock Brake System - H3

2. Install the BPMV and module assembly (2) to the brake master cylinder.

3. Install the bolts (1) for the BPMV and module assembly.

Tighten: Tighten the bolts to 32 N.m (24 lb ft).

4. Install the bracket (5) for the fluid level sensor electrical harness.

5. Install the mounting bracket bolt (6).

Tighten: Tighten the bolt to 8 N.m (71 lb in)

IMPORTANT: Ensure the locating pins remain in the master cylinder body.

NOTE:

Refer to Fastener Notice .

IMPORTANT: Hand install all of the BPMV and module assembly bolts to

properly locate the BPMV and module assembly before
tightening the bolts.

2007 Hummer H3

2007 BRAKES Antilock Brake System - H3

Fig. 43: Identifying Master Cylinder Reservoir
Courtesy of GENERAL MOTORS CORP.

6. Install the power brake booster (6). Refer to Power Brake Booster Replacement .

7. Install the master cylinder reservoir (3). Refer to Master Cylinder Reservoir

Replacement .

8. Remove the brake master cylinder assembly from CH-47830 . See Special Tools.

2007 Hummer H3

2007 BRAKES Antilock Brake System - H3