Sierra 1500 2WD V8-5.3L Hybrid (2004)
Flexible Fuel Sensor: Service and Repair
FUEL COMPOSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure.
2. Raise and suitably support the vehicle. Refer to Vehicle Lifting.
3. Disconnect the fuel composition sensor electrical connector.
4. Remove the fuel line retainers (1).
5. Disconnect the fuel pipes from the fuel composition sensor.
6. Remove the fuel composition sensor nuts.
7. Remove the fuel composition sensor.
8. If required, remove the fuel composition sensor bolts and remove the sensor from the bracket.
