Fuel Return Hose Replacement - Fuel Return Pipe to Fuel Injection Pump for GMC Truck Sierra - 4WD 2008

1. Remove the water outlet. Refer to Water Outlet Tube Replacement .
2. Remove the intake manifold tube. Refer to Intake Manifold Tube Replacement .
3. Reposition the fuel hose clamp (1) at the fuel return pipe.



4. Reposition the fuel hose clamp (2) at the fuel injection pump.
5. Remove the fuel hose (1) from the return pipe and injection pump.

1. Install the fuel hose (1) to the return pipe and injection pump.
2. Position the fuel hose clamp (2) at the fuel injection pump.



3. Position the fuel hose clamp (1) at the fuel return pipe.
4. Install the intake manifold tube. Refer to Intake Manifold Tube Replacement .
5. Install the water outlet. Refer to Water Outlet Tube Replacement .
6. Prime the fuel system. Refer to Fuel System Priming .
7. Start the engine. If the engine stalls, repeat the above step.
8. Once the engine starts, inspect for fuel leaks.