2010 Chevrolet Express 3500 Fuel Level Sensor

The procedure is to lubricate the new Fuel Injector O-ring seals with clean engine oil and then install the new injector O-ring seals onto the fuel injector, a new retainer clip onto the fuel injector, the fuel injector into the fuel rail injector socket with the electrical connector facing outward and the fuel rail.

You can lubricate a NEW Fuel Pressure Sensor O-ring seal with clean engine oil, install the NEW fuel pressure sensor O-ring seal onto the fuel line fitting, wrap a shop towel around the fuel pressure sensor fitting, install the fuel pressure sensor to the fuel line, connect the chassis wiring harness electrical connector to the fuel pressure sensor, install the chassis wiring harness clip to the fuel pipe, and then lower the vehicle.

You need to relieve the fuel system pressure, disconnect the fuel feed and the fuel return pipes from the fuel rail, and then remove the fuel return pipe attaching screw and the fuel return pipe retainer, the fuel return pipe, the fuel return pipe O-ring, the fuel pressure connection core assembly from the crossover pipe rail, the retaining clip attaching screw and the crossover fuel pipe retainer clip, the retaining clip attaching screw and the crossover fuel pipe retainer clip, the crossover pipe rail assembly from the left-hand rail assembly and the right-hand rail assembly and the crossover fuel pipe O-rings.