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 Pump Flow Control Module Replacement
Fuel Pump Flow Control Module Replacement
Callout
Component Name
Preliminary Procedures
Disconnect the battery negative cable. Refe ...
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:
Liftgate
To lock or unlock the liftgate from the inside, press
or
on the central locking switch or on
the driver door switch.
The vehicle must be in P (Park) for automatic transmissions. For manual transmissions
the parking brake must be engaged.
To open the liftgate from the outside, press
twi ...
Rear Seats
The vehicle's rear seats have adjustable head restraints in the outboard seating
positions.
The height of the head restraint can be adjusted. Pull the head restraint up
to raise it. Try to move the head restraint to make sure that it is locked in place.
To lower the head restraint, press ...
Throttle Body Installation
Install the throttle body (2) and a NEW throttle body seal ring (1).
Caution: Refer to Fastener Caution.
Install the 4 throttle body bolts (3) and tighten to 8 Y (71 lb in).
...
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