GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Important: Clean all evaporative emission (EVAP) line connections and surrounding areas prior to disconnecting the fittings in order to avoid possible system contamination.


    Object Number: 1285743  Size: SH
  1. Remove the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement in Engine Mechanical - 4.8L, 5.3L, and 6.0L.
  2. Disconnect the EVAP tube from the EVAP canister purge solenoid (1).
  3. • Push the large size white retainer portion in.
    • Push down, while pulling up slightly in order to disengage the tube.
  4. Disconnect the EVAP tube from the chassis EVAP pipe (2).
  5. • Push the large size white retainer portion in.
    • Push down, while pulling up slightly in order the disengage the tube.
  6. Remove the EVAP tube.
  7. Cap the EVAP canister purge solenoid and the EVAP chassis pipe in order to prevent possible EVAP system contamination.

Installation Procedure


    Object Number: 1285743  Size: SH
  1. Remove the caps from the EVAP canister purge solenoid and the EVAP chassis pipe.
  2. Install the EVAP tube.
  3. Connect the EVAP tube to the EVAP chassis pipe (2).
  4. Connect the EVAP tube to the EVAP canister purge solenoid (1).
  5. Install the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement in Engine Mechanical - 4.8L, 5.3L, and 6.0L.