GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Important: Clean the tube connections and surrounding areas before disconnecting in order to avoid possible evaporative emission (EVAP) system contamination.


    Object Number: 1485982  Size: SH
  1. Remove the intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .
  2. Disconnect the EVAP pipe (1) from the intake manifold and the EVAP canister purge solenoid. Refer to Plastic Collar Quick Connect Fitting Service .
  3. Disconnect the EVAP pipe (2) from the EVAP canister purge solenoid and the chassis EVAP pipe. Refer to Plastic Collar Quick Connect Fitting Service .
  4. Cap the Intake manifold port, the EVAP canister purge solenoid and the chassis EVAP pipe in order to prevent possible EVAP system contamination.

Installation Procedure


    Object Number: 1485982  Size: SH
  1. Remove the caps from the Intake manifold port, the EVAP canister purge solenoid and the chassis EVAP pipe.
  2. Connect the EVAP pipe (2) to the EVAP canister purge solenoid and the chassis EVAP pipe. Refer to Plastic Collar Quick Connect Fitting Service .
  3. Connect the EVAP pipe (1) to the intake manifold and the EVAP canister purge solenoid. Refer to Plastic Collar Quick Connect Fitting Service .
  4. Install the intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .