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:

Compass
The vehicle may have a compass display in the Driver Information Center (DIC). The compass receives its heading and other information from the Global Positioning System (GPS) antenna, StabiliTrak, and vehicle speed information. Avoid covering the GPS antenna, located on the roof, for long perio ...

Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant
Pipe Joint Compound Note: Three types of sealer are commonly used in engines. These are RTV sealer, anaerobic gasket eliminator sealer, and pipe joint compound. The correct sealer and amount must be used in the proper location to prevent oil leaks. DO NOT interchange the 3&# ...

Warm Up Three-Way Catalytic Converter Replacement (LUV,LUW)
Warm Up Three-Way Catalytic Converter Replacement Callout Component Name Warning: Refer to Exhaust Service Warning. Warning: Refer to Safety Glasses Warning. Preliminary Procedure Raise and support the ...

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