Chevrolet Sonic Repair Manual: Fuel System Cleaning
- 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.
- 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.
- 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.
Note:
If the fuel filter is plugged, the fuel tank should be inspected internally and cleaned if necessary.
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.
Note:
Only use oil-free compressed air to blow out the fuel pipes.
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:
Headlining Trim Panel Replacement (Hatchback with Sunroof)
Headlining Trim Panel Replacement
Callout
Component Name
Warning: Do not attempt to repair or alter the head impact
energy-absorbing material glued to the headliner or to the garnish trims.
If the material is damaged ...
Charge Air Bypass Regulator Solenoid Valve Replacement
Charge Air Bypass Regulator Solenoid Valve Replacement
Callout
Component Name
1
Charge Air Bypass Regulator Solenoid Valve Hose (Qty: 3)
Procedure
Disconnect the electrical connector.
...
Clutch and Differential Housing Cleaning and Inspection
Warning: Wear safety glasses to avoid injury when using compressed
air or any cleaning solvent. Bodily injury may occur if fumes are inhaled
or if skin is exposed to chemicals.
Clean the clutch housing (1) with a suitable solvent.
Air dry all the parts.
Inspect ...
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