GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 Savana 🢒 Brakes 🢒 Hydraulic Brakes 🢒 Wheel Cylinder Replacement

Removal Procedure

    Caution: Avoid taking the following actions when you service wheel brake parts:

       • Do not grind brake linings.
       • Do not sand brake linings.
       • Do not clean wheel brake parts with a dry brush or with compressed air.
    Some models or aftermarket brake parts may contain asbestos fibers which can become airborne in dust. Breathing dust with asbestos fibers may cause serious bodily harm. Use a water-dampened cloth in order to remove any dust on brake parts. Equipment is available commercially in order to perform this washing function. These wet methods prevent fibers from becoming airborne.

  1. Raise the vehicle and support the vehicle with safety stands.
  2. Remove the tire and the wheel from the vehicle. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  3. Install the pin into the park brake lever. Refer to Parking Brake Cable Adjuster Enabling in Park Brake.
  4. Remove the rear brake drums. Refer to Brake Drum Replacement .
  5. Remove the rear brake shoes. Refer to Brake Shoe Replacement .
  6. Disconnect the brake pipe from the rear brake cylinder. Refer to Brake Pipe Replacement in Hydraulic Brakes.

    7. Object Number: 156769 Size: SH
  7. Remove the rear brake cylinder retaining bolts.
  8. Remove the rear brake cylinder from the vehicle.

Installation Procedure

    Object Number: 156769 Size: SH
  1. Connect the rear brake cylinder to the vehicle.

    2. 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.

  2. Install the rear brake cylinder retaining bolts.

    3. Tighten
    Tighten the rear brake cylinder retaining bolts to 20 N·m (15 lb ft).

    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.

  3. Connect the brake pipe to the rear brake cylinder. Refer to Brake Pipe Replacement in Hydraulic Brakes.

    4. Tighten
    Tighten the rear brake pipe to the rear brake cylinder to 17 N·m (13 lb ft).

  4. Install the rear brake shoes. Refer to Brake Shoe Replacement .
  5. Install the rear brake drums. Refer to Brake Drum Replacement .
  6. Remove the pin to the park brake lever. Refer to Parking Brake Cable Adjuster Enabling in Park Brake.
  7. Install the tire and the wheel on the vehicle. Refer to Tire and Wheel Removal and Installation or Tire Repair in Tires and Wheels.
  8. Bleed the brake system. Refer to Hydraulic Brake System Bleeding in Hydraulic Brakes.
  9. Adjust the rear brakes. Refer to Drum Brake Adjustment .
  10. Adjust the park brake if necessary. Refer to Park Brake Adjustment in Park Brake.