F 150 4WD Pickup V8-5.4L CNG VIN M (2001)
OVERRIDE TOOL IN THE VENTING POSITION WILL CAUSE NATURAL GAS TO BE IMMEDIATELY RELEASED.
14. Turn in the manual override tool jackscrew until fuel flows.
15. Vent the fuel tank until the fuel flow stops.
16. Close the manual backflow valve on the fuel filler valve when the tank contents have been vented.
17. Perform the fuel line venting procedure. See: Fuel Line Venting Pressure Relief
18. Remove the manual override tool from the fuel tank solenoid valve.
19. Install the fuel tank solenoid manual lockdown valve.
