F 250 2WD Pickup V8-5.4L CNG VIN M (1999)
Fuel Pressure Release: Service Precautions
WARNING
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DO NOT MODIFY SYSTEM CONFIGURATION OR COMPONENTS OR INSTALL NEW COMPONENTS WITH PARTS NOT
ESPECIALLY DESIGNED FOR USE WITH NATURAL GAS. FORD MOTOR CONIP ANY HAS SPECIALLY DESIGNED THE
MATERIALS, COMPONENTS AND SYSTEM CONFIGURATION FOR THE NATURAL GAS VEHICLES 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 CAUSE ENGINE DAMAGE.
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
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IT IS IMPORTANT THAT YOUR NATURAL GAS VEHICLE BE PROPERLY MAINTAINED BY FORD NATURAL GAS TRAINED
PERSONNEL. IF A PROBLEM OCCURS, IT IS IMPORTANT THAT PROPERLY TRAINED PERSONNEL DIAGNOSE THE
CAUSE. IF THE PROBLEM RELATES TO THE FUEL SYSTEM, PROPER PART REPLACEMENT IS IMPERATIVE TO KEEP
THE VEHICLE OPERATING AT NORMAL PERFORMANCE. NATURAL GAS COMPONENTS AND GASOLINE FUEL
COMPONENTS ARE NOT INTERCHANGEABLE. IF THE VEHICLE IS NOT SERVICED IN ACCORDANCE WITH NATURAL
GAS FUELED VEHICLE PROCEDURES, DAMAGE CAN OCCUR AND THE WARRANTY MAY BE INVALIDATED. FAILURE
TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
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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. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
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THE FUEL SYSTEM IS ALWAYS PRESSURIZED TO 655 KPA (95 PSIG) DOWNSTREAM OF THE FUEL PRESSURE
REGULATOR AND UP TO 20700 KPA (3000 PSIG) UPSTREAM OF THE FUEL PRESSURE REGULATOR. USE CARE WHEN
SERVICING THE FUEL SYSTEM. FUEL PRESSURE MUST BE RELIEVED PRIOR TO ANY FUEL SYSTEM SERVICE. FAILURE
TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
Make sure all warnings are observed.
