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:
Detecting the Vehicle Ahead
The green vehicle ahead indicator will appear when a vehicle is detected ahead.
Whenever this indicator does not appear, FCA will not respond. The indicator may
disappear on curves, highway exit ramps, or hills, or due to poor visibility. The
FCA system will not detect another vehicle ahead ...
Checking Coolant
The vehicle must be on a level surface when checking the coolant level.
It is normal to see coolant moving in the upper coolant hose return line when
the engine is running.
Check to see if coolant is visible in the coolant surge tank. If the coolant
inside the coolant surge tank is boiling, do ...
Load Compartment (Hatchback)
The load compartment cover can be used to conceal objects under it or removed
and placed on the bottom of the load compartment to carry larger loads.
To remove the load compartment cover:
Lift up on the load compartment cover and pull out.
Store the load compartment cover on the bottom of ...
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