GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the rear frame. Refer to Rear Frame Replacement.

  2. Object Number: 785817  Size: SH
  3. Disconnect the evaporative emission (EVAP) hoses from the EVAP canister.
  4. Disconnect the electrical connector from the EVAP canister.

  5. Object Number: 785820  Size: SH
  6. Remove the EVAP canister retaining nuts.
  7. Complete the following in order to remove the EVAP canister:
  8. 5.1. Lower the rear of the canister enough to clear the 2 weld studs.
    5.2. Slide the canister rearward from the body brace.

Installation Procedure


    Object Number: 785820  Size: SH
  1. Complete the following in order to install the EVAP canister:
  2. 1.1. Insert the fresh air tube and tab on the canister forward into the body brace.
    1.2. Rotate the rear of the canister up over the 2 weld studs on the floor pan.

    Caution: Refer to Fastener Caution in the Preface section.

  3. Install the EVAP canister retaining nuts and tighten to 6 N·m (53 lb in).

  4. Object Number: 785817  Size: SH
  5. Connect the EVAP hoses to the EVAP canister.
  6. Connect the electrical connector to the EVAP canister.
  7. Install the rear frame. Refer to Rear Frame Replacement.