F 150 4WD Pickup V8-5.4L CNG VIN M (2001)
Fuel Delivery Valve Assembly: Service and Repair
REMOVAL
WARNING:
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DO NOT MODIFY THE SYSTEM CONFIGURATION OR COMPONENTS OR REPLACE COMPONENTS WITH COMPONENTS
NOT SPECIFICALLY DESIGNED FOR USE WITH NATURAL GAS. FORD MOTOR COMPANY HAS SPECIFICALLY
DESIGNED THE MATERIALS, COMPONENTS AND SYSTEM CONFIGURATION FOR THE NATURAL GAS 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 PROPERLY MAINTAINED BY FORD BI-FUEL TRAINED
PERSONNEL. IF A CONCERN OCCURS, IT IS IMPORTANT THAT PROPERLY TRAINED PERSONNEL DIAGNOSE THE
CAUSE. IF A CONCERN RELATES TO THE FUEL SYSTEM, CORRECT PART REPLACEMENT IS IMPERATIVE TO KEEP
YOUR VEHICLE OPERATING AT NORMAL PERFORMANCE. BI-FUEL COMPONENTS AND GASOLINE SPECIFIC
COMPONENTS ARE NOT INTERCHANGEABLE. IF YOUR VEHICLE IS NOT SERVICED IN ACCORDANCE WITH BI-FUEL
SERVICE PROCEDURES, DAMAGE CAN OCCUR AND YOUR WARRANTY MAY BE INVALIDATED.
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FUEL SUPPLY LINES ARE ALWAYS PRESSURIZED. WHEN SERVICING FUEL-RELATED COMPONENTS, DO NOT SMOKE
OR CARRY LIGHTED TOBACCO OR AN OPEN FLAME OF ANY TYPE. FLAMMABLE MIXTURES MAY BE PRESENT AND
CAN IGNITE, RESULTING IN PERSONAL INJURY.
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THE NATURAL GAS FUEL SYSTEM IS ALWAYS PRESSURIZED TO 655 KPA (95 PSI) DOWNSTREAM OF THE FUEL
PRESSURE REGULATOR AND UP TO 24821 KPA 3600 PSI) UPSTREAM OF THE FUEL PRESSURE REGULATOR. USE CARE
WHEN SERVICING THE FUEL SYSTEM OR PERSONAL INJURY CAN OCCUR.
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THE NATURAL GAS FUEL SUPPLY MANIFOLD IS PRESSURIZED TO 655 KPA (95 PSI). FUEL PRESSURE MUST BE
RELIEVED PRIOR TO ANY FUEL SYSTEM SERVICE.
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THE FUEL SYSTEM PRESSURE MUST BE RELIEVED BEFORE ANY COMPONENT CAN BE REMOVED. THE FUEL TANKS
MUST BE EVACUATED PRIOR TO TANK REMOVAL. REMOVAL OF COMPONENTS WITHOUT PRESSURE RELIEF OR
TANK EVACUATION CAN CAUSE NATURAL GAS TO ESCAPE INTO THE AIR AND CAUSE INJURY OR DEATH.
1. Relieve the natural gas fuel pressure. See: Fuel Filter/Fuel Pressure Release/Service and Repair/Bi-Fuel Models
2. Disconnect the battery ground cable.
3. Drain the engine cooling system.
4. Remove the air cleaner and outlet tube as an assembly.
5. Disconnect the ground and modular electrical connectors.
6. Disconnect the main compuvalve electrical connector.
