GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1998 🢒 Grand Prix 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Vacuum Tank Replacement

Removal Procedure
  1. Remove the right and left instrument panel insulators . Refer to Instrument Panel Insulator Replacement in Instrument Panel, Gauges and Console.

    2. Object Number: 419838 Size: SH
  2. Disconnect the vacuum hoses from the vacuum tank.

    3. Object Number: 282277 Size: SH
  3. Remove the mounting screws that secure the vacuum tank to the blower case.
  4. Remove the tank.

Installation Procedure

    Object Number: 282277 Size: SH
  1. Install the tank into 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 mounting screws that secure the vacuum tank to the blower case.

    3. Tighten
    Tighten the vacuum tank screws to 1.5 N·m (13 lb in).


    Object Number: 419838 Size: SH
  3. Connect the vacuum hoses from the vacuum tank.
  4. Install the right and left instrument panel insulator. Refer to Instrument Panel Insulator Replacement in Instrument Panel, Gauges and Console.