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:
Rear Bumper Impact Bar Replacement (Hatchback)
Rear Bumper Impact Bar Replacement
Callout
Component Name
Preliminary Procedure
Remove the rear bumper fascia. Refer to Rear Bumper Fascia Replacement.
1
Rear Bumper Impact Bar Bolt (Qty:?€‰4 ...
Throttle Body Heater Inlet Pipe Replacement (LUW)
Throttle Body Heater Inlet Pipe Replacement
Callout
Component Name
Preliminary Procedure
Drain the cooling system. Refer to Cooling System Draining and Filling.
1
Throttle Body Heater Inlet Pipe
...
Inspection/Maintenance System Check
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
Review Diagnostic System Check - Vehicle
for an overview of the diagnostic approach.
Diagnostic Procedure Instructions provides
an overview of each diagn ...
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