Fuel Line Venting Procedure

1. Connect the grounding cable (Rotunda 134-00121) to the back side of the fuel filler valve at the fuel line connection. See Figure 1.

2. Connect the other end of the grounding cable to the ground rod.





3. Connect the Fuel Filler Neck Venting Tool (Rotunda 134-00117) to the fuel filler valve. See Figure 2. Make sure the manual bleed valve on the Fuel Filler Neck Venting Tool is closed.

4. Connect the Venting Hose Assembly (Rotunda 134-00118) to the Fuel Filler Neck Venting Tool. See Figure 2.

5. Connect the Venting Hose Assembly to the vent stack.

NOTE:
Access to the fuel filler manual backflow valve will vary. A 5 mm (3/16 inch) hex wrench (allen wrench) will need to be used to open the blackflow valve on some models. For Crown Victoria access the backflow valve through the slot in the rubber boot.





6. Slowly open the manual backflow valve on the fuel filler valve. See Figure 3. Observe the pressure on the Fuel Filler Neck Venting Tool gauge. The pressure should read the same as the tank pressure.

7. Slowly open the bleed valve on the Fuel Filler Neck Venting Tool. Allow the contents of the fuel line to vent through the vent stack, into the atmosphere. Venting should last no more than 30 seconds. If compressed gas continues to vent after 30 seconds, proceed as follows:

^ Close the bleed valve.
^ Close the manual backflow valve.
^ Refer to "Fuel Tank Venting - Solenoid Valves - Stuck Open," procedure in the appropriate Service Manual.

8. Close the bleed valve on the Fuel Filler Neck Venting Tool and observe gauge pressure. The pressure should be at or near 0 kPa (0 psi).

9. Remove the Fuel Filler Neck Venting Tool and Vent Hose Assembly from the fuel filler valve.

10. Proceed to Fuel Filler Valve Replacement:





FUEL FILLER VALVE REPLACEMENT