Chevrolet Sonic Repair Manual: Fuel Pressure Relief
Special Tools
EN-34730-91 Pressure Tester
For equivalent regional tools, refer to Special Tools.
- Remove the fuel injector rail cap (1).
- Relieve the fuel pressure. Use EN-34730-91 pressure tester (1).
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.
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:
Trunk (Sedan)
Warning
Exhaust gases can enter the vehicle if it is driven with the liftgate, hatch/trunk
open, or with any objects that pass through the seal between the body and the hatch/trunk
or liftgate. Engine exhaust contains carbon monoxide (CO) which cannot be seen or
smelled. It can cause unconsci ...
Rear Side Door Lock Cylinder Opening Cover Replacement
Rear Side Door Lock Cylinder Opening Cover Replacement
Callout
Component Name
1
Rear Side Door Lock Cylinder Opening Cover
Procedure
Remove the rear side door lock cylinder, Do Not
remove the outside door han ...
SIR Disabling and Enabling
SIR component location affects how a vehicle should be serviced. There are parts
of the SIR system installed in various locations around a vehicle. To find the location
of the SIR components refer to Supplemental Inflatable Restraint System Description
and Operation.
There are several reason ...
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