GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Caution: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.

  1. Raise the vehicle.

  2. Object Number: 104621  Size: SH
  3. Mark the hoses for installation on the EVAP canister.
  4. Remove the EVAP vent hose (1).
  5. Remove the fuel tank vapor hose (2).
  6. Remove the purge hose (3).

  7. Object Number: 104774  Size: SH
  8. Remove the nuts (2) from the EVAP canister.
  9. Remove the EVAP canister (1) from the bracket by releasing tabs.

Installation Procedure


    Object Number: 104774  Size: SH
  1. Install the EVAP canister on the bracket.
  2. Install the EVAP canister assembly into the vehicle.
  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. Assemble the EVAP canister to the underbody with the 3 nuts.
  5. Tighten
    Tighten the EVAP Canister nuts to 9 N·m (80 lb in).


    Object Number: 104621  Size: SH
  6. Install the purge hose (3) to the EVAP canister.
  7. Install the fuel tank vapor hose (2) EVAP canister.
  8. Install the vent hose (1) to the EVAP canister
  9. Lower the vehicle.