Chevrolet Sonic Repair Manual: Fuel Tank Fuel Pump Module Replacement (Steel Tank)

Special Tools

EN-48279 Fuel Sender Lock Ring Wrench

For equivalent regional tools, refer to Special Tools.

Removal Procedure

1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief.
2. Remove the fuel tank. Refer to Fuel Tank Replacement.



3. Disconnect the electrical connectors (1).
4. Disconnect the evaporative emission and fuel lines (2). Refer to Plastic Collar Quick Connect Fitting Service.



5. Using the EN-48279 fuel sender lock ring wrench , remove the lock ring (1) by turning counter-clockwise.



6. Remove the fuel pump module (1) and O-ring (2). Discard the seal.

Installation Procedure

1. Install a NEW O-ring (2) and the fuel pump module (1).


2. Using the EN 48279 wrench, install the lock ring (1) by turning clockwise.


3. Connect the electrical connectors (1).
4. Connect the evaporative emission and fuel lines (2). Refer to Plastic Collar Quick Connect Fitting Service.
5. Install the fuel tank. Refer to Fuel Tank Replacement.