F 150 4WD Pickup V8-5.4L CNG VIN M (2001)
8. Install the manual override tool into the fuel tank solenoid valve of the tank to be vented.
WARNING: MAKE SURE THAT THE JACKSCREW IN THE MANUAL OVERRIDE TOOL IS RETRACTED FULLY
(COUNTERCLOCKWISE) PRIOR TO INSTALLATION INTO THE FUEL TANK SOLENOID VALVE. INSTALLATION OF THE
OVERRIDE TOOL IN THE VENTING POSITION WILL CAUSE NATURAL GAS TO BE IMMEDIATELY RELEASED.
CAUTION: Once the fuel tank solenoid valve has been opened using the manual override tool, the fuel tank solenoid valve must be replaced.
9. Turn in the manual override tool jackscrew until fuel flows.
10. Slowly open the manual backflow valve on the fuel filler valve and observe the gauge pressure of the fuel filler neck venting kit. The pressure
reading should be at tank pressure.
11. Slowly open the bleed valve on the fuel filler neck venting kit and allow the contents of the fuel tank to vent to the atmosphere. Venting may take
in excess of 1 hour.
12. Vent the fuel tank until the fuel flow stops.
13. Close the manual backflow valve on the fuel filler valve when the tank contents have been vented.
14. Perform the fuel line venting procedure. See: Fuel Line Venting Pressure Relief
