GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Corvette 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Vacuum Tank Replacement

Removal Procedure

    Object Number: 82079 Size: SH
  1. Remove the RH front tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  2. Remove the RH front wheelhouse filler panel. Refer to Wheelhouse Filler Replacement in Body Front End.
  3. Remove the PCM. Refer to Powertrain Control Module Replacement in Engine Controls.
  4. Tape off the rear edge of the RH fender and the front edge of the RH door to prevent scuffing.
  5. Open the RH door.
  6. Utilizing the opening between the fender and the door, remove the screws retaining the vacuum tank (1) to the hinge pillar (3).
  7. Working through the wheelhouse opening, disconnect the I/P harness vacuum connector (4) from the vacuum check valve (2).
  8. Disconnect the engine harness vacuum connector (5) from the vacuum check valve (2).
  9. Remove the vacuum tank (1) from the vehicle.
  10. Disconnect the vacuum check valve (2) from the vacuum tank (1).

Installation Procedure

    Object Number: 82079 Size: SH
  1. Connect the vacuum check valve (2) to the vacuum tank (1).
  2. Position the vacuum tank (1) to the vehicle.
  3. Connect the engine harness vacuum connector (5) to the vacuum check valve (2).
  4. Connect the I/P harness vacuum connector (4) to the vacuum check valve (2).
  5. Have an assistant position and hold the vacuum tank (1) against the hinge pillar (3).

    6. 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.

  6. Utilizing the opening between the fender and the door, install the vacuum tank (1) to hinge pillar (3) UPPER retaining screw FIRST (net locating position), then install the lower screw.

    7. Tighten
    Tighten the vacuum tank retaining screws to 3.5 N·m (31 lb in).

  7. Close the RH door.
  8. Remove the protective tape from the edges of the RH fender and door.
  9. Install the PCM. Refer to Powertrain Control Module Replacement in Engine Controls.
  10. Install the wheelhouse filler panel. Refer to Wheelhouse Filler Replacement in Body Front End.
  11. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.