Impala V6-3.9L (2007)
Fuel Pressure Release: Service and Repair
Fuel Pressure Gage Installation and Removal
Fuel Pressure Gage Installation and Removal
Tool Required
CH-48027 Digital Pressure Gage
Installation Procedure
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.
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 intake manifold cover.
2. Unscrew and remove the fuel pressure service port cap.
3. From the CH-48027, assemble the CH-48027-2 (2) and the CH-48027-3 (4).
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.
4. Install the CH-48027-3 (4) fitting to the fuel pressure service port.
5. 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.
6. Place the bleed hose on the CH-48027-2 (2) into an approved gasoline container.
7. Open the valve on CH-48027-2 (2) in order to bleed the air from the fuel pressure gage.
8. Command the fuel pump ON with a scan tool.
9. Close the valve on the CH-48027-2 (2).
