Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: Fuel Tank Fuel Pump Module Replacement

Special Tools

EN-48279 Fuel Sender Lock Ring Tool

For equivalent regional tools, refer Special Tools.

Removal Procedure

    Relieve the fuel system pressure. Refer to
  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 tool, remove the lock ring (1) by turning counter-clockwise.


  6. Remove the fuel pump module (1) and O-ring (2).
Installation Procedure

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

  2. Using the EN-48279 fuel sender lock ring tool, 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.
Fuel Tank Filler Pipe Replacement (Steel Tank)
Removal Procedure Remove the fuel filler door housing. Refer to Fuel Tank Filler Door Latch Housing Replacement. Remove the bracket fastener (1). Lift ...

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 Relieve the fuel system pressure. Refer to Fuel Pres ...

Other materials:

Fuel Tank Filler Pipe Replacement (Steel Tank)
Removal Procedure Remove the fuel filler door housing. Refer to Fuel Tank Filler Door Latch Housing Replacement. Remove the bracket fastener (1). Lift and support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove the fuel tank filler p ...

Case Porosity Repair
Some external leaks are caused by case porosity in non-pressurized areas. Thoroughly clean the area to be repaired with a cleaning solvent. Air dry the area. Warning: Epoxy adhesive may cause skin irritations and eye damage. Read and follow all information on the container label a ...

Neutral - Engine Running (Gen 1)
When the gear selector is moved to the Neutral (N) position, the hydraulic and electrical system operation is identical to Park (P) range. However, if Neutral is selected after the vehicle was operating in Reverse (R), the normally-high 35R pressure control solenoid 2 is commanded OFF and the ...

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