Sierra Classic 3500 4WD V8-8.1L (2007)
3. Remove the caps from the fuel and balance lines at the fuel tank.
4. Connect the fuel feed and pressure balance lines to the rear tank.
5. Remove the caps from the fuel and balance lines at the fuel tank.
6. Connect the fuel feed and pressure balance lines to the front tank.
7. Install the fuel fill cap.
8. Connect the negative battery cable.
9. Perform the following procedure in order to inspect for leaks.
1. Turn the ignition ON, with the engine OFF, for 2 seconds.
2. Turn the ignition OFF for 10 seconds.
3. Turn the ignition ON, with the engine OFF.
4. Inspect for fuel leaks.
