Chevrolet Sonic Repair Manual: Fuel System Cleaning

Chevrolet Sonic Repair Manual / Powertrain / Engine / Fuel System / Fuel System Cleaning

Note:

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

Drain the fuel tank. Refer to Fuel Tank Draining.
Remove the fuel pump module assembly. Refer to Fuel Tank Fuel Pump Module Replacement.
Inspect the fuel pump module strainer. Replace the pump module assembly if the fuel strainer is contaminated.

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.

Flush the fuel tank with hot water.
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.
Allow the tank to dry completely before reassembly.
Disconnect the fuel feed pipe at the engine fuel rail. Refer to Plastic Collar Quick Connect Fitting Service.

Note:

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

Clean the fuel pipes by applying air pressure in the opposite direction of the fuel flow.
Connect the fuel feed pipe to the engine fuel rail. Refer to Plastic Collar Quick Connect Fitting Service.
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:

Front Side Door Lock Cylinder Replacement
Front Side Door Lock Cylinder Replacement Callout Component Name 1 Front Side Door Lock Cylinder Screw Access Plug Tip: Use the appropriate tool, remove the plug. 2 Front Side Doo ...

Rear Side Door Check Link Replacement
Rear Side Door Check Link Replacement Callout Component Name Preliminary Procedures Move the window to the full up position. Remove the rear side door trim panel. Refer to Rear Side Door Trim Replacement ...

Air Intake System Description
Circuit/System Description The primary function of the air intake system is to provide filtered air to the engine. The system uses a filter element mounted in a housing. The filter housing is remotely mounted and uses intake ducts to route the incoming air into the throttle body. T ...

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