Sierra Classic 2500 4WD V8-6.0L (2007)
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.
4. Disconnect the fuel feed and pressure balance lines from the rear tank.
5. Cap the fuel and balance lines at the fuel tank in order to avoid possible system contamination.
