Crown Victoria V8-4.6L CNG SOHC VIN 9 (1999)
Fuel Pressure Release: Service and Repair
Warning
WARNING
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THE FUEL SYSTEM OPERATES UNDER HIGH PRESSURE AND REMAINS PRESSURIZED AFTER ENGINE SHUTDOWN. THE
FUEL SYSTEM PRESSURE MUST BE RELIEVED BEFORE ANY FUEL-RELATED COMPONENTS ARE SERVICED. FAILURE
TO RELIEVE THE FUEL PRESSURE COULD RESULT IN PERSONAL INJURY OR PROPERTY DAMAGE.
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THE STATUS (STUCK OPEN, STUCK CLOSED, OR GOOD) OF EACH FUEL TANK SOLENOID VALVE MUST BE IDENTIFIED
PRIOR TO VENTING THE FUEL SYSTEM OR PERSONAL INJURY OR PROPERTY DAMAGE MAY RESULT. FOR
ADDITIONAL INFORMATION.
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DO NOT VENT AN ENTIRE FUEL TANK BY USING THE FUEL LINE VENTING PROCEDURE, AS DAMAGE TO THE FUEL
SUPPLY MANIFOLD SCHRADER VALVE WILL RESULT, WITH THE POSSIBILITY OF PERSONAL INJURY OR PROPERTY
DAMAGE.
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DO NOT MODIFY THE SYSTEM CONFIGURATION OR COMPONENTS, OR INSTALL COMPONENTS OR PARTS NOT
SPECIALLY DESIGNED FOR USE WITH NATURAL GAS. FORD MOTOR COMPANY HAS SPECIALLY DESIGNED THE
MATERIALS, COMPONENTS AND SYSTEM CONFIGURATION THESE VEHICLES, AND EACH PARTICULAR SYSTEM IS
PRECISELY CALIBRATED FOR EFFICIENT OPERATION. THE USE OF DIFFERENT PARTS OR MATERIALS CAN PRODUCE
AN UNTESTED CONFIGURATION THAT COULD RESULT IN FIRE OR PERSONAL INJURY, OR CAUSE ENGINE DAMAGE.
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EYE AND EAR PROTECTION ARE REQUIRED TO BE WORN DURING VENTING OR REMOVAL AND INSTALLATION OF
FUEL SYSTEM COMPONENTS. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
CAUTION: Do not vent any fuel tank unless the fuel tank or the fuel tank solenoid valve is damaged or inoperative and a new fuel tank solenoid valve
or fuel tank must be installed. Unnecessary venting of good tanks can cause damage to the fuel tank solenoid valve.
