Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: Fuel System Cleaning

    Note:

    If the fuel filter is plugged, the fuel tank should be inspected internally and cleaned if necessary.

  1. Drain the fuel tank. Refer to  Fuel Tank Draining.
  2. Remove the fuel pump module assembly. Refer to  Fuel Tank Fuel Pump Module Replacement.
  3. Inspect the fuel pump module strainer. Replace the pump module assembly if the fuel strainer is contaminated.
  4. Note:

    When flushing the fuel tank, handle the fuel and water mixture as a hazardous material. Handle the fuel and water in accordance with all applicable local, state, and federal laws and regulations.

  5. Flush the fuel tank with hot water.
  6. Pour the water out of the fuel sender assembly opening in the fuel tank. Rock the fuel tank in order to be sure that the removal of the water from the fuel tank is complete.
  7. Allow the tank to dry completely before reassembly.
  8. Disconnect the fuel feed pipe at the engine fuel rail. Refer to  Plastic Collar Quick Connect Fitting Service.
  9. Note:

    Only use oil-free compressed air to blow out the fuel pipes.

  10. Clean the fuel pipes by applying air pressure in the opposite direction of the fuel flow.
  11. Connect the fuel feed pipe to the engine fuel rail. Refer to  Plastic Collar Quick Connect Fitting Service.
  12. Install the fuel pump module assembly. Refer to  Fuel Tank Fuel Pump Module Replacement.
Fuel Pressure Relief
Special Tools EN-34730-91 Pressure Tester For equivalent regional tools, refer to Special Tools. Warning: Gasoline or gasoline vapors are highly flammable. A fire could occur if an ig ...

Fuel System Description
Fuel System Overview The fuel system is an electronic returnless on-demand design. A returnless fuel system reduces the internal temperature of the fuel tank by not returning hot fuel f ...

Other materials:

Cooling System Draining and Filling
Draining Procedure Warning: To avoid being burned, do not remove the radiator cap or surge tank cap while the engine is hot. The cooling system will release scalding fluid and steam under pressure if radiator cap or surge tank cap is removed while the engine and radi ...

Rear Seat Back Cushion Pivot Support Replacement
Rear Seat Back Cushion Pivot Support Replacement Callout Component Name Preliminary Procedure Remove the rear seat back cushion. Refer to Rear Seat Back Cushion Removal and Installation 1 Rear S ...

Front Wheel Drive Shaft Seal Replacement - Left Side
Special Tools DT-446 Installer Drift DT-7004 Slide Hammer DT-23129 Universal Seal Remover For equivalent regional tools, refer to Special Tools. Removal Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove the front suspension s ...

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