Sierra 3500 Denali 4WD V8-6.0L (2011)
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.
23. Install the intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield Replacement (See: Engine, Cooling and
Exhaust/Engine/Intake Manifold/Service and Repair).
Fuel Line Replacement - Chassis (1500 Extended Cab - With 8 Ft Bed)
Fuel Line Replacement - Chassis (1500 Extended Cab - With 8 Ft Bed)
Removal Procedure
Note: Clean all fuel and evaporative emission (EVAP) lines connections and surrounding areas prior to disconnecting the lines in order to avoid
possible fuel and/or EVAP system contamination.
1. Relieve the fuel system pressure. Refer to the Fuel Pressure Relief (CH-48027) (See: Fuel Filter/Fuel Pressure Release/Service and Repair)Fuel
Pressure Relief (Without CH-48027) (See: Fuel Filter/Fuel Pressure Release/Service and Repair).
2. Disconnect the engine evaporative emission (EVAP) line (1) quick connect fitting from the chassis EVAP line. Refer to Plastic Collar Quick
Connect Fitting Service (See: Fuel Line Coupler/Service and Repair/Plastic Collar Quick Connect Fitting Service).
3. Disconnect the fuel feed line quick connect fitting (2) from the fuel rail. Refer to Metal Collar Quick Connect Fitting Service (See: Fuel Line
Coupler/Service and Repair/Metal Collar Quick Connect Fitting Service).
4. Cap the fuel rail and EVAP pipes.
5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (See: Maintenance/Vehicle Lifting/Service and Repair).
6. Unbolt and reposition the front propeller shaft, if required. Refer to Front Propeller Shaft Replacement (See: Transmission and
Drivetrain/Drive/Propeller Shafts, Bearings and Joints/Drive/Propeller Shaft/Service and Repair/Front Propeller Shaft Replacement).
