F 250 2WD Pickup V8-5.4L CNG VIN M (1999)
3. Turn in the manual lockdown valve jackscrew on the fuel tank solenoid valve(s).
4. Connect the fuel filler neck venting kit to the fuel filler valve.
5. Connect the venting hose assembly to the fuel filler neck venting kit.
6. Connect the venting hose assembly to the vent stack.
7. Slowly open the manual lockdown valve jackscrew on the fuel tank solenoid valve of the fuel tank to be vented.
