GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Express - AWD 🢒 Engine 🢒 Engine Controls and Fuel - 4.3L 🢒 Evaporative Emission Hoses/Pipes Replacement - Engine/Chassis

Removal Procedure

    Object Number: 1938257 Size: SH
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief.
  2. Disconnect the chassis fuel feed pipe quick connect fitting from the engine compartment fuel pipe. Refer to Metal Collar Quick Connect Fitting Service.
  3. Disconnect the engine evaporative emission (EVAP) pipe quick connect fitting from the chassis EVAP pipe. Refer to Plastic Collar Quick Connect Fitting Service.
  4. Cap the fuel and EVAP pipe connections in order to prevent fuel/EVAP system contamination.
  5. Remove the fuel feed and EVAP pipe bracket nut from the bellhousing stud and remove the bracket from the stud.
  6. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle.
  7. Disconnect the chassis fuel feed pipe quick connect fitting (2) from the fuel tank fuel feed pipe. Refer to Plastic Collar Quick Connect Fitting Service.
  8. Disconnect the EVAP canister purge pipe quick connect fitting (1) from the chassis EVAP pipe. Refer to Plastic Collar Quick Connect Fitting Service.

    9. Object Number: 1945611 Size: SH
  9. Remove the fuel/EVAP pipe assembly bolt (1).

    10. Object Number: 1945612 Size: SH
  10. Remove the fuel/EVAP pipe assembly (1) from the vehicle.
  11. Remove the EVAP pipe from the fuel/EVAP pipe assembly.

Installation Procedure

    Object Number: 1945612 Size: SH
  1. Install the EVAP pipe to the fuel/EVAP pipe assembly.
  2. Install the fuel/EVAP pipe assembly (1) to the vehicle.

    3. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1945611 Size: SH
  3. Install the fuel/EVAP pipe assembly bolt (1) and tighten to 13 N·m (115 lb in).

    4. Object Number: 1938257 Size: SH
  4. Connect the EVAP canister purge pipe quick connect fitting (1) to the chassis EVAP pipe. Refer to Plastic Collar Quick Connect Fitting Service.
  5. Connect the chassis fuel feed pipe quick connect fitting (2) to the fuel tank fuel feed pipe. Refer to Plastic Collar Quick Connect Fitting Service.
  6. Lower the vehicle.
  7. Install the fuel feed and EVAP pipe bracket to the bellhousing stud and install the nut.

    8. Tighten to 25 N·m(18 lb ft).

  8. Remove the caps from the fuel and EVAP pipe connections.
  9. Connect the engine EVAP pipe quick connect fitting to the chassis EVAP pipe. Refer to Plastic Collar Quick Connect Fitting Service.
  10. Connect the chassis fuel feed pipe quick connect fitting to the engine compartment fuel pipe. Refer to Metal Collar Quick Connect Fitting Service.
  11. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  12. Perform the following procedure in order to inspect for leaks:
    13. 12.1. Turn the ignition ON, with the engine OFF, for 2 seconds.
    12.2. Turn the ignition OFF for 10 seconds.
    12.3. Turn the ignition ON, with the engine OFF.
    12.4. Inspect for fuel leaks.
  13. Install the engine cover. Refer to Engine Cover Replacement.