Hombre S Regular Cab 4WD V6-4.3L (1999)
Fuel Pressure Release: Service Precautions
WARNING: Adhere to the following procedures any time the fuel system is being worked on in order to reduce the risk of fire and personal
injury:
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Keep a dry chemical (Class B) fire extinguisher near the work area.
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Place a "CAUTION FLAMMABLE" sign in the work area.
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Work in a well-ventilated area. Do not smoke, and keep sparks and open flames away.
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Wear eye protection.
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Use caution when working near the catalytic converter to prevent the possibility of burns or fire. (The temperatures within the converter can
exceed 537 degrees C (1000 degrees F).)
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Relieve the fuel system pressure prior to disconnecting fuel system components.
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Disconnect the negative battery cable except for tests where battery voltage is required.
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Use a suitable container to store or catch fuel.
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Do not replace fuel pipe with fuel hose.
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Plug all disconnected fuel line fittings and hoses.
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After making any fuel system repairs ALWAYS inspect for fuel leaks.
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Replace all pipes with the same pipe and fittings that were removed.
Do not reuse "O" rings. Always replace.
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Do not attempt repairs on the fuel system until you have read the instructions and checked the pictures relating to that repair.
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Adhere to all Notices and Cautions.
NOTE:
If available, use system bleed valve (schrader) to relieve pressure.
NYLON FUEL PIPE CAUTIONS: In order to reduce the risk of fire and personal injury observe the following items:
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Replace all nylon fuel pipes that are nicked, scratched or damaged during installation, do not attempt to repair the sections of the nylon fuel pipes
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Do not hammer directly on the fuel harness body clips when installing new fuel pipes. Damage to the nylon pipes may result in a fuel leak.
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Always cover nylon vapor pipes with a wet towel before using a torch near them. Also, never expose the vehicle to temperatures higher than 115°
C (239°F) for more than one hour, or more than 90°C (194°F) for any extended period.
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Apply a few drops of clean engine oil to the male pipe ends before connecting fuel pipe fittings. This will ensure proper reconnection and prevent
a possible fuel leak. (During normal operation, the O-rings located in the female connector will swell and may prevent proper reconnection if not
lubricated.)
