GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 376943  Size: SH
  1. Remove the brake fluid from the master cylinder reservoir.
  2. Remove the connector.
  3. Remove the four bolts that hold the reservoir to the master cylinder.
  4. Remove the reservoir.
  5. Remove the fluid level switch from the reservoir.
  6. Use a pick or a thin tool in order to reach into the slot on the bottom of the reservoir. Compress the tabs while pulling out on the sensor.

Installation Procedure


    Object Number: 376943  Size: SH
  1. Install the fluid level switch into the reservoir until the tabs click.
  2. Install the reservoir.
  3. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  4. Install the bolts.
  5. Tighten
    Tighten the bolts to 22 N·m (16 lb ft).

  6. Install the connector.
  7. Fill the master cylinder with brake fluid. Refer to Master Cylinder Reservoir Filling .
  8. Bleed the brake system. Refer to Hydraulic Brake System Bleeding .