Sierra Classic 2500 4WD V8-6.0L (2007)
11. Lower the vehicle.
12. Remove the caps from the fuel rail.
13. Connect the EVAP canister purge tube line (2).
14. Connect the fuel feed line (1) at the engine.
15. Install the fuel fill cap.
16. Connect the negative battery cable.
17. 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.
Fuel Hose/Pipes Replacement - Chassis (Cab/Chassis - Rear)
FUEL HOSE/PIPES REPLACEMENT - CHASSIS (CAB/CHASSIS - REAR)
REMOVAL PROCEDURE
IMPORTANT: Clean the fuel and evaporative emission (EVAP) connections and surrounding areas prior to disconnecting the lines in order
to avoid possible system contamination.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief (With CH 48027) Fuel Pressure Relief (Without CH 48027).
2. Disconnect the fuel feed and pressure balance lines from the front tank.
3. Cap the fuel and balance lines at the fuel tank in order to avoid possible system contamination.
