Fuel Pressure Regulator: Service Precautions
WARNING:^ DO NOT SMOKE OR CARRY LIGHTED TOBACCO OR OPEN FLAME OF ANY TYPE WHEN WORKING ON OR NEAR ANY FUEL-RELATED COMPONENTS. HIGHLY FLAMMABLE MIXTURES ARE ALWAYS PRESENT AND MAY BE IGNITED. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY
^ FUEL IN THE FUEL SYSTEM REMAINS UNDER HIGH PRESSURE EVEN WHEN THE ENGINE IS NOT RUNNING. BEFORE WORKING ON OR DISCONNECTING ANY OF THE FUEL LINES OR FUEL SYSTEM COMPONENTS, THE FUEL SYSTEM PRESSURE MUST BE RELIEVED. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
^ DO NOT MODIFY THE SYSTEM CONFIGURATION OR COMPONENTS OR REPLACE COMPONENTS WITH COMPONENTS NO 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.
^ 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.
^ 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.
^ 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.
^ THE NATURAL GAS FUEL SUPPLY MANIFOLD IS PRESSURIZED TO 655 KPA (95 PSI). FUEL PRESSURE MUST BE RELIEVED PRIOR TO ANY FUEL SYSTEM SERVICE.
^ 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.