GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2003 🢒 Envoy - 2WD 🢒 Engine 🢒 Engine Controls - 4.2L 🢒 Evaporative Emission Canister Vent Solenoid Valve Replacement

Removal Procedure
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    2. Object Number: 730919 Size: SH
  2. Disconnect the harness connector (2) from the evaporative emission (EVAP) canister vent valve.

    3. Object Number: 730717 Size: SH
  3. Disconnect the EVAP vent pipe (3) from the EVAP canister vent valve (1).
  4. Disengage the bracket retaining tab (2) and remove the EVAP canister vent valve.

Installation Procedure

    Object Number: 730717 Size: SH
  1. Install the EVAP canister vent valve (1) on the bracket (2).
  2. Inspect for proper retention of the EVAP vent valve (1) on the bracket (2).
  3. Connect the EVAP vent pipe (3) to the EVAP canister vent valve (1).

    4. Object Number: 730919 Size: SH
  4. Connect the harness connector (2) to the EVAP canister vent valve.
  5. Lower the vehicle.