Tools Required

J 34730-1A Fuel Pressure Gage

Caution: 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.

1. Remove the fuel pressure service connection cap, located on the fuel rail.




Caution: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of fire and personal injury. The towel will absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the towel in an approved container when the connection of the fuel pressure gage is complete.

2. Install the J 34730-1A fuel pressure gage to the fuel pressure service connection, located on the fuel rail.
3. Turn ON the ignition.

Caution: Do not drain the fuel into an open container. Never store the fuel in an open container due to the possibility of a fire or an explosion.

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. Inspect for fuel leaks.

1. Remove the bleed hose on the J 34730-1A from the approved container.
2. Remove the shop towel from around the fuel pressure service connection and discard into an approved container.
3. Disconnect the J 34730-1A from the fuel pressure service connection.
4. install the fuel pressure service connection cap.
5. Inspect for leaks using the following procedure:

5.1.	Turn ON the ignition, with the engine OFF for 2 seconds.

5.2.	Turn OFF the ignition for 10 seconds.

5.3.	Turn ON the ignition, with the engine OFF.

5.4.	Inspect for fuel leaks.