F 150 4WD Pickup V8-5.4L CNG VIN M (2001)
16. Install the manual override tool into the fuel tank solenoid of the tank to the vented.
WARNING: MAKE SURE 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.
17. Turn in the manual override tool jackscrew until fuel flows.
18. Vent the fuel tank until the fuel flow stops.
19. Close the manual backflow valve on the fuel filler valve when the tank contents have been vented.
20. Perform the fuel line venting procedure. See: Fuel Line Venting Pressure Relief
21. Remove the manual override tool from the fuel tank solenoid valve.
