Chevrolet Sonic Repair Manual: Fuel Pressure Relief

Chevrolet Sonic Repair Manual / Powertrain / Internal Combustion Powertrain Control / Engine Control / General / 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 Pump Flow Control Module Replacement

Fuel Pump Flow Control Module Replacement Callout Component Name Preliminary Procedures Disconnect the battery negative cable. Refe ...

Other materials:

Rear Spring, Insulator, and Jounce Bumper Replacement
Rear Spring, Insulator, and Jounce Bumper Replacement Callout Component Name Preliminary Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. 1 Rear Spring Proced ...

Cylinder Head Replacement
Special Tools BO-38185 Hose Clamp Pliers EN-45059 Angle Meter For equivalent regional tools, refer to Special Tools. Removal Procedure Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection. Relieve fuel system pressure. Re ...

Intake Manifold Assemble (1.8L LUW and LWE)
Install the 4 NEW multiport fuel injector seals (4). Install the multiport fuel injection fuel rail (2) and the fuel injectors (3) to the intake manifold (5). Caution: Refer to Fastener Caution. Install the 2 multiport fuel in ...

0.0058