Savana 3500 V8-4.8L (2009)
Fuel Pressure Release: Service and Repair
Fuel Pressure Relief (With CH-48027)
Fuel Pressure Relief (With CH-48027)
Special Tools
CH-48027 - Digital Pressure Gage
Warning: Refer to Gasoline/Gasoline Vapors Warning (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel/Service
Precautions).
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.
1. If the fuel system requires repair, prevent fuel spillage by removing the fuel pump fuse. Refer to Electrical Center Identification Views (See:
Maintenance/Fuses and Circuit Breakers/Fuse/Application and ID).
2. Remove the engine cover, if required.
3. Loosen the fuel fill cap in order to relieve the fuel tank vapor pressure.
4. Remove the fuel rail service port cap.
Warning
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.
5. Wrap a shop towel around the fuel rail service port.
6. Connect the CH-48027-3 (4) to the fuel rail service port.
7. Connect the CH-48027-2 (2) to the CH-48027-3 (4).
8. Place the hose on the CH-48027-2 (2) into an approved gasoline container.
9. Open the valve on the CH-48027-2 (2) in order to bleed any fuel from the fuel rail.
10. Close the valve on the CH-48027-2 (2).
11. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
