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:

Rear Wheel Bearing and Hub Replacement (Disc Brake)
Special Tools EN–45059 Angle Meter For equivalent regional tools, refer to Special Tools. Removal Procedure Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Insta ...

Positive Crankcase Ventilation Pipe Removal
Open the 2 positive crankcase ventilation pipe retainer clips (2) and (3). Note: Move retainer clamp (1) in direction of the arrow. Remove the positive crankcase ventilation pipe from the intake manifold. Loosen the charger air bypass val ...

Intake Air Pressure and Temperature Sensor Replacement
Intake Air Pressure and Temperature Sensor Replacement Callout Component Name Preliminary Procedure Remove the left front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement. 1 Intake ...

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