Chevrolet Sonic Repair Manual: Fuel Pressure Relief
Special Tools
EN-34730-91 Pressure Tester
For equivalent regional tools, refer to Special Tools.
- Remove the fuel injector rail cap (1).
- Relieve the fuel pressure. Use EN-34730-91 pressure tester (1).
Warning:
Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.
Warning:
Relieve the fuel system pressure before servicing fuel system components in order to reduce the risk of fire and personal injury.
After relieving the system pressure, a small amount of fuel may be released when servicing the fuel lines or connections. In order to reduce the chance of personal injury, cover the regulator and the fuel line fittings with a shop towel before disconnecting. This will catch any fuel that may leak out. Place the towel in an approved container when the disconnection is complete.
Fuel Pressure Measurement
Special Tools
EN 34730?E1 Pressure Tester
For equivalent regional tools, refer to Special Tools
Warning: Gasoline or gasoline vapors are highly flammable. A fire
could occ ...
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 ...
Other materials:
Washer Fluid
Open the cap with the washer symbol on it. Add washer fluid until the tank is
full. See Engine Compartment Overview for reservoir location.
Caution
. Do not use engine coolant (antifreeze) in the windshield washer. It
can damage the windshield washer system and paint.
. Do not mi ...
Theft Deterrent Module Replacement
Theft Deterrent Module Replacement
Callout
Component Name
Preliminary Procedure
Remove the steering column upper trim cover. Refer
to Steering Column Upper Trim Cover Replacement.
Remove the steering column lower trim ...
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 f ...
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