GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Turn OFF the ignition.
  2. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical.

  3. Object Number: 486596  Size: SH
  4. Disconnect the EVAP canister purge valve harness connector.
  5. Disconnect the EVAP canister purge valve purge pipe and vacuum supply hose.

  6. Object Number: 217748  Size: SH
  7. Release the retaining tab on the EVAP canister purge mounting bracket and remove the EVAP canister purge valve.
  8. Inspect for carbon release exiting the EVAP canister purge valve. Refer to Evaporative Emission System Cleaning .

Installation Procedure


    Object Number: 217748  Size: SH
  1. Install the EVAP canister purge valve onto the EVAP canister purge valve mounting bracket.

  2. Object Number: 486596  Size: SH
  3. Connect the EVAP canister purge valve purge pipe and vacuum supply hose.
  4. Connect the EVAP canister purge valve harness connector.
  5. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical.