GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1371134  Size: SH

    Important: The EVAP emissions canister is located under the center of the vehicle. It has 3 EVAP line connections:

       • The EVAP fresh air
       • The EVAP vent
       • The EVAP purge

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Notice: Clean all fuel pipe connections and surrounding areas before disconnecting the fuel pipes to avoid contamination of the fuel system.

  3. Disconnect the EVAP canister fresh air hose/pipe from the fuel tank fresh air hose/pipe (2). Refer to Plastic Collar Quick Connect Fitting Service .
  4. Disconnect the EVAP canister vent hose/pipe from the EVAP canister. Refer to Plastic Collar Quick Connect Fitting Service .

  5. Object Number: 1371133  Size: SH
  6. Disconnect the EVAP canister purge hose/pipe (1) from the EVAP canister.
  7. Remove the EVAP canister-to-underbody nuts (3).
  8. Lower the EVAP canister.

  9. Object Number: 1371134  Size: SH
  10. Disconnect the EVAP vent solenoid electrical connector (1).
  11. Remove the EVAP canister (4) from the vehicle.

Installation Procedure


    Object Number: 1371134  Size: SH
  1. Connect the EVAP vent solenoid electrical connector (1).
  2. Install the EVAP canister (4) to the underbody of the vehicle.
  3. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1371133  Size: SH
  4. Install the EVAP canister-to-underbody nuts (3).
  5. Tighten
    Tighten the nuts to 9 N·m (80 lb in).

  6. Connect the EVAP canister purge hose/pipe (1) to the EVAP canister.

  7. Object Number: 1371134  Size: SH
  8. Connect the EVAP canister vent hose/pipe (3) to the EVAP canister. Refer to Plastic Collar Quick Connect Fitting Service .
  9. Connect the EVAP canister fresh air hose/pipe to the fuel tank fresh air hose/pipe (2). Refer to Plastic Collar Quick Connect Fitting Service .
  10. Lower the vehicle.