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:

GM Mobility Reimbursement Program
This program is available to qualified applicants for cost reimbursement of eligible aftermarket adaptive equipment required for the vehicle, such as hand controls or a wheelchair/ scooter lift for the vehicle. For more information on the limited offer, visit www.gmmobility.com or call the ...

Liftgate Hinge Replacement
Liftgate Hinge Replacement Callout Component Name Preliminary Procedures Remove the liftgate. Refer to Liftgate Replacement. Lower the rear of the headliner to access the inner bolts. Refer to Headlining Trim Panel Replac ...

Exhaust Manifold Cleaning and Inspection
Clean the exhaust manifold (1) in solvent. Warning: Wear safety glasses in order to avoid eye damage. Dry the exhaust manifold (1) with compressed air. An exhaust manifold leak or damage may cause an exhaust leak and may effect OBD II system perf ...

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