CNG Fuel System Pressure Release (Fuel Line Venting & Fuel Tank Evacuating): Notes
WARNING: This page is about a different car, the 2000 Ford Pickup, 2000 Ford Econoline, and 2000 Ford Contour. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
When venting natural gas from system, fuel filler neck venting kit must be connected to a vent stack that allows natural gas to be vented outside of repair shop. Vent stack installation must be approved by local authorities.