Chevrolet Sonic Repair Manual: Fuel Pressure Measurement
Special Tools
EN 34730?E1 Pressure Tester
For equivalent regional tools, refer to Special Tools
- Remove the protective cap from the test connection.
- Attach the EN 34730?E1 tester (1) to the test connection.
- Start the engine.
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:
Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the connections. In order to reduce the risk of personal injury, cover the fuel system components with a shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an approved container when the disconnection is complete.
- Bleed the pressure tester at idling speed.
- Collect the exiting fuel in a suitable container.
- Read the fuel pressure from the pressure gauge.
Caution:
Clean all of the following areas before performing any disconnections in order to avoid possible contamination in the system:
- The fuel pipe connections
- The hose connections
- The areas surrounding the connections
Fuel Injector Replacement
Fuel Injector Replacement
Callout
Component Name
Preliminary Procedure
Disconnect battery negative cable. Refer to Battery Negative ...
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 ig ...
Other materials:
Safety Belts
This section of the manual describes how to use safety belts properly. It also
describes some things not to do with safety belts.
Warning
Do not let anyone ride where a safety belt cannot be worn properly. In a crash,
if you or your passenger(s) are not wearing safety belts, injuries can be mu ...
Front Side Door Trim Replacement
Front Side Door Trim Replacement
Callout
Component Name
Preliminary Procedure
Remove the front side door upper front trim panel. Refer to Front Side
Door Upper Front Trim Panel Replacement.
1
Fr ...
Park - Engine Running (Gen 1)
When the gear selector lever is in the Park (P) position, fluid is drawn into
the pump through the transmission fluid filter assembly. Line pressure is then directed
to the following valves:
Fluid Pressure Directed in Preparation for a Shift
Manual Valve
Mechanically controlled by ...
0.0048