Chevrolet Sonic Repair Manual: Fuel Pressure Relief

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

Remove the fuel injector rail cap (1).

Relieve the fuel pressure. Use EN-34730-91 pressure tester (1).

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:

Airbag System Check
The airbag system does not need regularly scheduled maintenance or replacement. Make sure the airbag readiness light is working. See Airbag Readiness Light. Caution If an airbag covering is damaged, opened, or broken, the airbag may not work properly. Do not open or break the airbag coverings. ...

Air Conditioning Evaporator Thermal Expansion Valve Replacement
Air Conditioning Evaporator Thermal Expansion Valve Replacement Callout Component Name Preliminary Procedure Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. Remove the air conditioning evaporator hos ...

Crankshaft and Bearing Removal
Identify all the connecting rod bearing caps (1). Remove the 4 bolts. Remove the connecting rod bearing caps 1 and 4 (1). Turn the crankshaft through 180°. Remove the 4 bolts. Remove the connecting rod bearing caps 2 and 3 ( ...

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