GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 699561  Size: SH

    Important: The fuel tank may need to be partially lowered to gain access to the evaporative emission (EVAP) canister.

  1. Carefully lower the fuel tank. Refer to Fuel Tank Replacement .
  2. Disconnect the EVAP vent hose (6), the purge pipe (8), and the vapor pipes (7) from the EVAP canister (1).
  3. Important: Replace the retaining strap when replacing the EVAP canister.

  4. Release the canister (1) from the retaining strap.
  5. Remove the canister (1) from the fuel tank.

Installation Procedure


    Object Number: 699561  Size: SH
  1. Position the EVAP canister (1) on the fuel tank.
  2. Secure the EVAP canister (1) to the fuel tank with a new retaining strap.
  3. Notice: 

       • Do not attempt to straighten kinked nylon pipes. Replace any kinked nylon pipes in order to prevent damage to the vehicle.
       • Do not attempt to repair sections of nylon pipes. Replace damaged nylon pipes.
       • Replace the vapor pipes with original equipment or parts that meet GM specifications.
       • Replace the vapor hoses with original equipment or parts meeting GM specifications. Use only reinforced fuel-resistant hose identified with the word Fluoroelastomer or GM 6163M on the hose.

  4. Install the EVAP vent hose (6), the purge pipe (8), and the vapor pipes (7) to the EVAP canister (1).
  5. Install the fuel tank. Refer to Fuel Tank Replacement .