GM Service Manual Online
For 1990-2009 cars only

Master Cylinder Replacement Automatic Transmission


Object Number: 1633267  Size: MF

Callout

Component Name

Warning: Remove all the air from the hydraulic brake system anytime the hydraulic brake system is opened for repair. The entire bleeding procedure must be followed. Failure to remove all the air in the hydraulic brake system will result in reduced braking performance and possible personal injury.

Warning: Refer to Brake Fluid Irritant Warning in the Preface section.

Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution in the Preface section.

Caution: Refer to Fastener Caution in the Preface section.

1

Brake Fluid Level Sensor Electrical Connector

2

Brake Pipe Nut (Qty: 2)

Tip

    • Cap or plug the brake pipes to prevent fluid loss and contamination.
    • Bleed the brake system anytime the system is opened for repairs. Refer to Hydraulic Brake System Bleeding.

Tighten
19 N·m (14 lb ft)

3

Master Cylinder Nut (Qty: 2)

Tighten
25 N·m (18 lb ft)

4

Brake Master Cylinder

5

Brake Master Cylinder Seal

Tip

    • If reusing the brake master cylinder, inspect the seal between the master cylinder and booster for damage and replace if necessary.
    • Ensure that the seal is properly seated in the recessed groove on the master cylinder.

Master Cylinder Replacement Manual Transmission


Object Number: 1646464  Size: SF

Callout

Component Name

Warning: Remove all the air from the hydraulic brake system anytime the hydraulic brake system is opened for repair. The entire bleeding procedure must be followed. Failure to remove all the air in the hydraulic brake system will result in reduced braking performance and possible personal injury.

Warning: Refer to Brake Fluid Irritant Warning in the Preface section.

Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution in the Preface section.

Caution: Refer to Fastener Caution in the Preface section.

1

Clutch Cylinder Connector

Tip

    • The hose from between the clutch master cylinder and the brake master cylinder reservoir is NOT serviced separately. It is serviced with the brake master cylinder reservoir.
    • Bleed the clutch anytime the system is opened for repairs. Refer to Hydraulic Clutch Bleeding.

2

Brake Fluid Level Indicator Connector

3

Brake Pipe Nut (Qty: 2)

Tip

    • Cap or plug the brake pipes to prevent fluid loss and contamination.
    • Bleed the brake system anytime the system is opened for repairs. Refer to Hydraulic Brake System Bleeding.

Tighten
19 N·m (14 lb ft)

4

Master Cylinder Nut (Qty: 2)

Tighten
25 N·m (18 lb ft)

5

Brake Master Cylinder