Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: 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.

  1. Remove the fuel injector rail cap (1).

  2. 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:

Lock Cylinder Coding - Ignition
The ignition lock cylinder uses 8 key cut positions, 1–8. The ignition cylinder tumblers (3) are located on alternate sides of the cylinder (5). They are not snap-in and are not self-retaining. It follows the key code with the first tumbler being the first depth of the ...

Hood Primary Latch Release Cable Replacement
iv Hood Primary Latch Release Cable Replacement Callout Component Name Preliminary Procedures Remove the radiator opening upper cover. Refer to Front Opening Upper Cover Replacement. Remove the air inlet grille. Refer to A ...

Evaporative Emission Canister Replacement
Removal Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove the EVAP canister cover fasteners (1) and cover (2). Warning: Do not breathe the air through the EVAP component tubes or hoses. The fuel vapors inside t ...

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