F 150 Heritage 4WD Pickup V8-5.4L SOHC VIN Z Bi-fuel (2004)
Disconnect the fuel lines.
6. Disconnect the connector.
7. Disconnect the coolant hoses.
8. Remove the fuel pressure regulator.
INSTALLATION
1. NOTE: All fuel lines must be leak tested.
To install, reverse the removal procedure.
Fuel Charging and Controls
FUEL PRESSURE REGULATOR
REMOVAL
WARNING:
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Do not modify the system configuration or components or install new components not specifically designed for use with natural gas. Ford
Motor Company has specifically designed the materials, components and system configuration for the 5.4L F-Series Bi-Fuel vehicle, and
each particular system is precisely calibrated for efficient operation. The use of different parts or materials can produce an untested
configuration that can result in fire or personal injury or cause engine damage.
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It is important that your bi-fuel vehicle be correctly maintained by Ford bi-fuel trained personnel. If a concern occurs, it is important
that correctly trained personnel diagnose the cause. If a concern relates to the fuel system, correct part installation is imperative to keep
