Fuel Rail - Fuel Leaks At Spring Lock Coupler

Article No.
98-16-12

08/17/98

FUEL SYSTEM - FUEL LEAKING FROM SPRING
LOCK COUPLINGS AT FUEL RAIL - AMBIENT
TEMPERATURES BELOW -40 DEGREES CELSIUS
(-40 DEGREES FAHRENHEIT)

LIGHT TRUCK:
1997-98 EXPEDITION, F-150, F-250 LD
1998 NAVIGATOR

ISSUE

Fuel may leak from the spring lock couplings at the fuel rail if the 0-rings have been damaged or at ambient temperatures below -40°C (-4O°F). This may be caused by the spring lock coupling 0-rings not sealing.

ACTION

Service replacement 0-rings are now available. Replace the spring lock coupling 0-rings. Refer to the following Service Procedure for details.

SERVICE PROCEDURE

Refer to the 1998 F-150/250 or Expedition/Navigator Workshop Manual, Pages 310-00-8 through 310-00-10 to disconnect the spring lock connectors and remove the 0-rings. Refer to the following to install the new 0-rings and reconnect the spring lock connectors:

1. Inspect and clean both coupling ends.





2. It female cup damage is observed such as interior scratches, replace the fuel rail. It no damage is observed to either the male or female coupling ends, replace the 0-rings being sure to observe the color coding as in Figure 1.

3. Lubricate the 0-rings with clean engine oil meeting Ford specification WSS-M2C153-F.

4. Connect the fitting.

5. Pull on the fitting to make sure it is fully engaged.

6. Install the safety clip.

7. Start the engine and check for fuel leaks.

PART NUMBER PART NAME

F75Z-9J277-AA 0-Ring - Supply Side (Black, 1/2")
F75Z-9J277-BA 0-Ring - Supply Side (Blue, 1/2")
F75Z-9J277-DA 0-Ring - Return Side (Black, 3/8")
F75Z-9J277-CA 0-Ring - Return Side (Blue, 3/8")

OTHER APPLICABLE ARTICLES: NONE

WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage

OPERATION DESCRIPTION TIME

981612A Replace Spring Lock 0.6 Hr.
Coupling 0-Rings

DEALER CODING
CONDITION
BASIC PART NO. CODE
9J274 42

OASIS CODES: 404000