BRAKE MASTER CYLINDER WITH POWER BRAKE BOOSTER AND CHASSIS CONTROL MODULE REPLACEMENT (RHD)

2007 BRAKES Antilock Brake System - H3

Removal Procedure

CAUTION: Refer to Brake Fluid Irritant Caution.

NOTE: Refer to Brake Fluid Effects on Paint and Electrical Components

Notice.

1. Apply and release the brake pedal at least 20 times to release the power brake accumulator reserve pressure.

3. Disconnect the 4 brake pipe fittings from the master cylinder.

2. Mark the location of the brake pipes to the master cylinder.

BRAKE MASTER CYLINDER WITH POWER BRAKE BOOSTER AND CHASSIS CONTROL MODULE REPLACEMENT (RHD)

Fig. 30: View Of Brake Pipe Fittings & The Master Cylinder Courtesy of GENERAL MOTORS CORP.

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BRAKE MASTER CYLINDER WITH POWER BRAKE BOOSTER AND CHASSIS CONTROL MODULE REPLACEMENT (RHD)

Fig. 31: Identifying Brake Fluid Level Sensor Courtesy of GENERAL MOTORS CORP.

2007 BRAKES Antilock Brake System - H3

loss and contamination.

4. Disconnect the brake fluid level sensor (1) electrical connector.

5. Disconnect the electrical connectors (2) and (3) at the brake pressure modulator valve (BPMV) and module assembly.

6. Remove the driver knee bolster bracket. Refer to Driver Knee Bolster Bracket Replacement (Left Hand Drive) or Driver Knee Bolster Bracket Replacement (Right Hand Drive) .

2007 BRAKES Antilock Brake System - H3

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BRAKE MASTER CYLINDER WITH POWER BRAKE BOOSTER AND CHASSIS CONTROL MODULE REPLACEMENT (RHD)

Fig. 32: View Of Retainer & Clevis Pin Courtesy of GENERAL MOTORS CORP.

7. Remove the retainer (1) from the clevis pin.

8. Remove the clevis pin (2) from the master cylinder pushrod and the brake pedal.

9. Remove the 4 master cylinder nuts (1).

2007 BRAKES Antilock Brake System - H3

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BRAKE MASTER CYLINDER WITH POWER BRAKE BOOSTER AND CHASSIS CONTROL MODULE REPLACEMENT (RHD)

Fig. 33: Identifying Master Cylinder Nuts Courtesy of GENERAL MOTORS CORP.

Reposition any wiring harnesses as necessary to improve access to the master cylinder nuts.

2007 BRAKES Antilock Brake System - H3

BRAKE MASTER CYLINDER WITH POWER BRAKE BOOSTER AND CHASSIS CONTROL MODULE REPLACEMENT (RHD)

Fig. 34: Removing/Installing Master Cylinder/Power Brake Booster Assembly Courtesy of GENERAL MOTORS CORP.

10. Remove the master cylinder with power brake booster assembly.

Installation Procedure

2007 BRAKES Antilock Brake System - H3

BRAKE MASTER CYLINDER WITH POWER BRAKE BOOSTER AND CHASSIS CONTROL MODULE REPLACEMENT (RHD)

Fig. 35: Removing/Installing Master Cylinder/Power Brake Booster Assembly Courtesy of GENERAL MOTORS CORP.

1. Install the master cylinder with power brake booster assembly.

NOTE: Refer to Fastener Notice.

2. Install the 4 master cylinder nuts (1).

2007 BRAKES Antilock Brake System - H3

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BRAKE MASTER CYLINDER WITH POWER BRAKE BOOSTER AND CHASSIS CONTROL MODULE REPLACEMENT (RHD)

Fig. 36: Identifying Master Cylinder Nuts Courtesy of GENERAL MOTORS CORP.

Tighten: Tighten the nuts to 27 N. m (20 lb ft).

3. Position any wiring harnesses which were moved to access the master cylinder nuts to the retainers.

4. Install the clevis pin (2) to the master cylinder pushrod and the brake pedal.

2007 BRAKES Antilock Brake System - H3

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BRAKE MASTER CYLINDER WITH POWER BRAKE BOOSTER AND CHASSIS CONTROL MODULE REPLACEMENT (RHD)

Fig. 37: View Of Retainer & Clevis Pin Courtesy of GENERAL MOTORS CORP.

5. Install the retainer (1) to the clevis pin.

6. Verify the correct installation of the retainer by rotating the retainer 360 degrees.

The retainer must rotate freely and not become disengaged from the groove in the clevis pin.

7. Install the driver knee bolster bracket. Refer to Driver Knee Bolster Bracket Replacement (Left Hand Drive) or Driver Knee Bolster Bracket Replacement (Right Hand Drive) .

2007 BRAKES Antilock Brake System - H3

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BRAKE MASTER CYLINDER WITH POWER BRAKE BOOSTER AND CHASSIS CONTROL MODULE REPLACEMENT (RHD)

Fig. 38: Identifying Brake Fluid Level Sensor Courtesy of GENERAL MOTORS CORP.

8. Connect the brake fluid level sensor (1) electrical connector.

9. Connect the electrical connectors (2) and (3) at the BPMV and module assembly.

BRAKE MASTER CYLINDER WITH POWER BRAKE BOOSTER AND CHASSIS CONTROL MODULE REPLACEMENT (RHD)

Fig. 39: View Of Brake Pipe Fittings & The Master Cylinder Courtesy of GENERAL MOTORS CORP.

2007 BRAKES Antilock Brake System - H3

10. Connect the 4 brake pipe fittings to the master cylinder.

Tighten: Tighten the fittings to 19 N. m (14 lb ft).

11. Adjust the stop lamp switch. Refer to Stop Lamp Switch Adjustment.

12. Adjust the cruise release switch. Refer to Cruise Release Switch Adjustment.

13. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding (Manual) or Hydraulic Brake System Bleeding (Pressure) .

BRAKE PRESSURE MODULATOR VALVE REPLACEMENT Tools Required

CH-47830 Holding Fixture. See Special Tools.

Removal Procedure

2007 BRAKES Antilock Brake System - H3

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