Note: For specific fuel delivery system specifications, refer to the Fuel Delivery System Test Information Chart located at the beginning of section HC.
4.6L Crown Victoria NGV
5.4L E/F-Series NGV
WARNING
NATURAL GAS IN THE FUEL SYSTEM IS AT HIGH PRESSURE AT ALL TIMES. TO AVOID INJURY OR FIRE, RELEASE THE FUEL PRESSURE FROM THE FUEL SYSTEM BEFORE DISASSEMBLING ANY FUEL SYSTEM COMPONENT. TO RELEASE THE PRESSURE FROM THE SYSTEM FOLLOW THE PRESSURE RELIEF PROCEDURE: PRESSURE RELIEF PROCEDURE
THUMP INERTIA FUEL SHUTOFF (IFS) SWITCH AND VERIFY THE BUTTON HAS BEEN UPSET (DO NOT RESET).
CONNECT NATURAL GAS FUEL PRESSURE TESTING KIT 134-00114 AT THE SCHRADER VALVE LOCATED ON THE FUEL INJECTION SUPPLY MANIFOLD (FUEL RAIL). TESTING KIT VALVE MUST BE CLOSED.
POSITION THE TESTING KIT VENTING HOSE TO A WELL-VENTILATED LOCATION, PREFERABLY OUTSIDE OR INTO VENT STACK.
GRADUALLY OPEN THE TESTING KIT VALVE TO RELIEVE THE FUEL PRESSURE AND ALLOW IT TO ESCAPE (TAKES APPROXIMATELY ONE TO TWO MINUTES.).
USE CARE TO PREVENT COMBUSTION FROM ESCAPING FUEL. NO SMOKING, OPEN FLAMES OR ANY KIND OF ARCING. SAFE FUEL HANDLING PRACTICES: NATURAL GAS-FIRE
REPORT ALL FIRES TO THE APPROPRIATE AUTHORITIES.
FLAMES FROM NATURAL GAS HAVE A YELLOW AND/OR BLUE COLOR.
KNOW THE LOCATIONS OF PORTABLE FIRE EXTINGUISHER, FIRE BLANKETS, AND FIRE ALARMS. LEARN HOW TO USE THEM.
USE AN ABC RATED/CERTIFIED FIRE EXTINGUISHER OR FIRE BLANKET TO FIGHT FLAMMABLE GAS FIRES.
FIRST AID
WHEN OVERCOME BY VAPORS, IF SAFE, MOVE VICTIM TO FRESH AIR. IF NOT BREATHING, GIVE ARTIFICIAL RESPIRATION OR CPR (CARDIOPULMONARY RESUSCITATION) AS APPROPRIATE. SEEK MEDICAL ATTENTION IMMEDIATELY.
FOR IRRITATED EYES, FLUSH WITH LARGE AMOUNTS OF WATER FOR 15 MINUTES. REMOVE CONTACT LENSES, IF WORN. SEEK MEDICAL ATTENTION.
HEALTH
NATURAL GAS (AND ALL OTHER FUEL VAPORS) CAN BE HARMFUL BY INHALATION.
ALL FUELS CAN BE HARMFUL OR FATAL IF SWALLOWED.
FUELS AND PRODUCTS CONTAINING METHANOL (E.G. WINDSHIELD WASHER FLUID) CAN CAUSE BLINDNESS IF SWALLOWED.
ALL FUELS ARE IRRITATING TO THE EYES AND RESPIRATORY SYSTEM.
HANDLING
BE AWARE OF THE MERCUROUS MERCAPTAN "ROTTEN EGG" SMELL OF NATURAL GAS.
USE FLAMMABLE GAS HANDLING PRECAUTIONS.
KEEP FLAMMABLE GASES IN APPROVED, LABELED CONTAINERS.
USE IN WELL-VENTILATED AREAS AND CONTROL VAPORS. BE AWARE THAT NATURAL GAS IS NOT VISIBLE, IS LIGHTER THAN AIR, CAN TRAVEL ALONG THE CEILING, AND MAY COLLECT IN HIGH HOLLOWS.
WHEN TRANSFERRING FLAMMABLE GASES, CONNECT THE VENT STACK TO THE SOURCE, AND GROUND THE SOURCE TO THE EARTH.
DO NOT SMOKE, OR USE HEAT/SPARK PRODUCING EQUIPMENT NEAR NATURAL GAS.
DO NOT EAT, DRINK OR SMOKE WHERE FUELS ARE HANDLED, PROCESSED OR STORED.
WASH HANDS THOROUGHLY AFTER HANDLING ANY FUEL.
LEAKAGE
NOTIFY THE PROPER AUTHORITIES IN THE EVENT OF ANY LEAKAGE YOU HAVE NOT BEEN TRAINED TO ADDRESS.
STOP, AND ALLOW FUEL TO VENTILATE TO OUTSIDE ATMOSPHERE AFTER ANY FUEL ESCAPE.
NOTE
A small amount of pressure 21 kPa (3 psig) will remain in the fuel rail.
High pressure still exists in the fuel tanks.
