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 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:
Front Bumper Fascia Bracket Replacement
Front Bumper Fascia Bracket Replacement
Callout
Component Name
Preliminary Procedure
Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement.
Remove the front bumper fascia center support bracket. Refer to ...
Warm Up Three-Way Catalytic Converter Installation
Install the warm up three way catalytic converter (5) to the brackets and
the turbocharger. Use a NEW warm up three way catalytic converter seal (2).
Note: Never re-use the V-clamp.
Install a NEW warm up three way catalytic converter V-clamp (1).
In ...
Throttle Actuator Control (TAC) System Description
acceleratorpedalassemblyi/pappsensor1appsensor2ignitionvoltage(ifequipped)cruisecontrolswitch(ifequipped)(ifequipped)throttlebodybcmtpsensor1tpsensorreducedenginepowerlampthrottleactuatormotor
The engine control module (ECM) is the control center for the throttle actuator
control (TAC) system. ...
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