GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Open the hood.
  2. Caution: Refer to Battery Disconnect Caution in the Preface section.

  3. Disconnect the battery.
  4. Raise the vehicle all the way.

  5. Object Number: 1998450  Size: SH
  6. Remove the rear purge valve (2).
  7. • Remove the vent line from carbon canister to the rear purge valve (4).
    • Disconnect the quick-release fitting.
    • Remove the vent line from the rear purge valve (1).
    • Disconnect the quick-release fitting.
    • Disconnect the wiring harness of the rear purge valve (3).
    • Disconnect the wiring harness plug.
    • Release the bracket and remove the rear purge valve (arrows).

Installation Procedure

  1. Install the rear purge valve.
  2. • Install the rear purge valve at the bracket.
    • Install the wiring harness at the rear purge valve.
    • Connect the wiring harness plug.
    • Install the vent line at the rear purge valve.
    • Connect the quick-release fitting.
    • Install the vent line at the carbon canister to the rear purge valve.
    • Connect the quick-release fitting.
  3. Lower the vehicle all the way.
  4. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the battery.
  6. Connect the ground clamp to ground terminal.

    Tighten
    Tighten the ground clamp nut to 5 N·m (44 lb in).

  7. For programming procedures, refer to Control Module References .
  8. Close the hood.