GM Service Manual Online
For 1990-2009 cars only

Brake Master Cylinder Pressure Sensor Replacement With RPO JL1 and Without JL4


Object Number: 1990507  Size: MF

Callout

Component Name

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

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

Preliminary Procedures

  1. Turn the ignition switch to the OFF position.
  2. Apply the park brake.
  3. Disconnect the brake master cylinder pressure sensor electrical connector.

1

Brake Master Cylinder Pressure Sensor

Notice: Refer to Fastener Notice in the Preface section.

Procedure

  1. After the installation is complete, bleed the hydraulic brake system at the front wheels only. It is not necessary the bleed the rear hydraulic circuit. Refer to Hydraulic Brake System Bleeding .
  2. Do not lubricate the sensor threads prior to installation.

Tighten
26 N·m (19 lb ft)

2

Brake Master Cylinder Pressure Sensor O-ring Seal

Procedure

  1. Discard the O-ring seal.
  2. Do not lubricate the O-ring seal prior to installation.