CTS V8-6.0L (2007)
Fuel Pressure Release: Service and Repair
Fuel Pressure Gage Installation and Removal
Fuel Pressure Gage Installation and Removal
Tools Required
J 34730-1A Fuel Pressure Gage
Installation Procedure
Caution: Refer to Gasoline/Gasoline Vapors Caution.
Notice: 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
1. Remove the engine sight shield.
Caution: Refer to Fuel Gage Leak Caution.
2. Install the J 34730-1A to the fuel pressure service connection, located on the left front of the fuel rail.
3. Turn ON the ignition, with the engine OFF.
Caution: Refer to Fuel Storage Caution.
4. Place the bleed hose of the fuel pressure gage into an approved gasoline container.
5. Open the bleed valve on the fuel pressure gage in order to bleed the air from the fuel pressure gage.
6. Command the fuel pump ON with a scan tool.
7. Close the bleed valve on the fuel pressure gage.
8. Command the fuel pump ON with a scan tool.
9. Inspect for fuel leaks.
Removal Procedure
1. Place the fuel pressure gage bleed hose into an approved container and open the bleed valve in order to bleed OFF fuel system pressure.
2. Place a shop towel under the J 34730-1A to catch any remaining fuel spillage.
3. Remove the J 34730-1A from the fuel pressure connection.
4. Drain any fuel remaining in the fuel pressure gage into an approved container.
5. Inspect for leaks using the following procedure:
