F 250 4WD Pickup V8-5.4L SOHC VIN L (1999)
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If a blue or green dot is not present on regulator, the fuel pressure regulator must be replaced. Refer to SERVICE PROCEDURE.
SERVICE PROCEDURE
WARNING
DO NOT SMOKE OR CARRY LIGHTED TOBACCO OR OPEN FLAME OF ANY TYPE WHEN WORKING ON OR NEAR ANY FUEL
RELATED COMPONENT. HIGHLY FLAMMABLE MIXTURES ARE ALWAYS PRESENT AND MAY BE IGNITED, RESULTING IN
POSSIBLE PERSONAL INJURY.
WARNING
FUEL IN THE FUEL SYSTEM REMAINS UNDER HIGH PRESSURE EVEN WHEN THE ENGINE IS NOT RUNNING.
1.
Relieve fuel system pressure as follows:
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Remove schrader valve cap and attach EFI/CFI fuel pressure gauge (T80L-9974-B).
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Slowly open manual valve on EFI/CFI fuel pressure gauge to relieve fuel pressure. This will drain some fuel out of the system. Place the fuel
in a suitable container.
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Remove fuel pressure gauge and install schrader valve cap.
2.
Disconnect vacuum line from fuel pressure regulator. See Figure 2.
