Hummer H3. Manual — part 1324

Fig. 12: View Of Master Cylinder Reservoir & attachments
Courtesy of GENERAL MOTORS CORP.

1. Install the grommets (4) and (5), if removed.

IMPORTANT: Apply a small amount of CLEAN brake fluid to the grommets

before installation.

2007 Hummer H3

2007 BRAKES Hydraulic Brakes - H3

2. Install the master cylinder reservoir (3).

3. Install the master cylinder reservoir roll pin (2).

4. Install the fluid level sensor electrical connector (6) to the bracket.

5. Install the master cylinder reservoir bolt (1).

Tighten: Tighten the bolt to 2 N.m (18 lb in).

6. Remove the brake master cylinder from the CH-47830 .

7. Install the brake master cylinder and power brake booster assembly. Refer to Brake

Master Cylinder with Power Brake Booster and Chassis Control Module
Replacement (LHD) or Brake Master Cylinder with Power Brake Booster and
Chassis Control Module Replacement (RHD) .

8. Fill the brake master cylinder reservoir. Refer to Master Cylinder Reservoir Filling.

MASTER CYLINDER REPLACEMENT

Removal Procedure

1. Remove the power brake booster. Refer to Power Brake Booster Replacement.

2. Remove the master cylinder reservoir. Refer to Master Cylinder Reservoir Replacement.

NOTE:

Refer to Fastener Notice .

CAUTION: Refer to Brake Fluid Irritant Caution .

2007 Hummer H3

2007 BRAKES Hydraulic Brakes - H3

Fig. 13: Identifying Brake Pressure Modulator Valve (BPMV)
Courtesy of GENERAL MOTORS CORP.

3. Remove the brake pressure modulator valve (BPMV) (2) from the master cylinder. Refer to

Brake Pressure Modulator Valve Replacement .

4. Remove the brake master cylinder (5).

Installation Procedure

2007 Hummer H3

2007 BRAKES Hydraulic Brakes - H3

Fig. 14: Identifying Brake Pressure Modulator Valve (BPMV)
Courtesy of GENERAL MOTORS CORP.

1. Install the BPMV (2) to the master cylinder (5). Refer to Brake Pressure Modulator

Valve Replacement .

2. Install the master cylinder reservoir. Refer to Master Cylinder Reservoir Replacement.

3. Install the power brake booster. Refer to Power Brake Booster Replacement.

BRAKE PEDAL ASSEMBLY REPLACEMENT (LHD)

Removal Procedure

2007 Hummer H3

2007 BRAKES Hydraulic Brakes - H3