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:

Forward Collision Alert (FCA) System
For vehicles with FCA, this system is intended to help avoid or reduce the harm caused by front-end crashes. FCA provides a flashing visual alert and beeps when approaching a vehicle directly ahead too quickly. FCA also provides a visual alert if following another vehicle much too closely. The ...

Hub/Axle Flange and Wheel Stud Runout Inspection
Special Tools GE-8001 Dial Indicator Set , or equivalent Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Mark the location of the wheels to the wheel studs and mark the specific vehicle position on each tire and wheel – LF, LR, RF, RR. Remove the tire and ...

Input Shaft Assemble
Special Tools J-840733 Driver For equivalent regional tools, refer to Special Tools. Note: Ensure the input shaft rear bearing retaining ring (2) is placed on the input shaft before installing the input shaft rear bearing assembly (1). Place the input sh ...

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