Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

Remove the instrument panel insulator. Refer to CLOSEOUT/INSULATOR PANEL REPLACEMENT - RIGHT .
Disconnect the vacuum hoses from the vacuum tank.

Fig 1: Disconnecting Vacuum Hoses From Vacuum Tank
Courtesy of GENERAL MOTORS CORP.
Remove the screws that secure the vacuum tank to the HVAC module.
Remove the vacuum tank.

Fig 2: Removing Vacuum Tank & Screws
Courtesy of GENERAL MOTORS CORP.