Sierra 3500 Denali 4WD V8-6.0L (2011)
Fuel Supply Line: Service and Repair
Fuel Feed and Evaporative Emission Hose Replacement (Front)
Fuel Feed and Evaporative Emission Hose Replacement (Front)
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).
7. Unbolt and reposition the brake pressure modulator valve (BPMV). Refer to Brake Pressure Modulator Valve Replacement (See: Brakes and
Traction Control/Antilock Brakes / Traction Control Systems/Hydraulic Control Assembly - Antilock Brakes/Service and Repair/Brake Pressure
Modulator Valve Replacement).