Fuel System Pressure Release
WARNING:
CNG fuel systems are always pressurized to 100 psi (7 kg/cm2
) downstream of fuel pressure regulator. CNG fuel systems are kept up to 3000 psi (211 kg/cm2
) upstream of fuel pressure regulator. Use care when servicing CNG fuel systems.
CNG and LPG fuel pressure must be released prior to any fuel system service. To release CNG fuel pressure, see FUEL SYSTEM PRESSURE RELEASE in appropriate REMOVAL & INSTALLATION - F150 PICKUP - NGV article, or FUEL SYSTEM PRESSURE RELEASE in REMOVAL & INSTALLATION article. Failure to follow these instructions may result in personal injury.