GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Warning: Refer to Safety Glasses Warning in the Preface section.

    Danger: 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. Refer to Lifting and Jacking the Vehicle.
  2. Remove the rear frame. Refer to Rear Frame Replacement.

  3. Object Number: 1949797  Size: SH
  4. Disconnect the canister purge tube (1) from the canister.
  5. Remove the canister vent tube (3) from the canister by twisting and pulling it away from the canister.
  6. Remove the canister to under body retaining bolts (2).
  7. Remove the evaporative emission canister from the vehicle.

Installation Procedure

  1. Install the evaporative emission (EVAP) canister to the vehicle.

  2. Object Number: 1949797  Size: SH
  3. Install the EVAP canister retaining bolts (2). Hand tighten only.
  4. Caution: Refer to Fastener Caution in the Preface section.

  5. Tighten the EVAP canister to vehicle retaining bolts and tighten to 6 N·m (53 lb in).
  6. Install the canister vent pipe (3) to the canister vent port.
  7. Align the canister purge pipe quick connector (1) with the canister purge pipe port and push the connector firmly onto the port.
  8. Install the rear frame. Refer to Rear Frame Replacement.
  9. Lower the vehicle.