Explorer Sport Trac 2WD V6-4.0L (2009)
Fuel Rail: Service and Repair
Fuel Rail
Fuel Rail
Removal and Installation
WARNING: Do not smoke, carry lighted tobacco or have an open flame of any type when working on or near any fuel-related component.
Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.
WARNING: Before working on or disconnecting any of the fuel tubes or fuel system components, relieve the fuel system pressure to prevent
accidental spraying of fuel. Fuel in the fuel system remains under high pressure, even when the engine is not running. Failure to follow this
instruction may result in serious personal injury.
WARNING: Always disconnect the battery ground cable at the battery when working on an evaporative emission (EVAP) system or
fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in
serious personal injury.
NOTICE: If used as a leverage device, the fuel rail may be damaged. Care must be taken when working around the fuel rail.
NOTE: During the repair or replacement of fuel-related components, cap, tape or otherwise appropriately protect all liquid and vapor fuel openings to
prevent the ingress of dirt or other contamination. Remove all caps, tape and other protective materials prior to installation.
1. Release the fuel system pressure.
2. Disconnect the battery ground cable.
3. Disconnect the spring lock coupling.
4. Remove the intake manifold.
5. Remove the fuel supply tube bracket bolt.
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To install, tighten to 8 Nm (71 lb-in).
6. Disconnect the 6 fuel injector electrical connectors.
7. Disconnect the fuel pressure and temperature sensor electrical and vacuum connectors.
8. Remove the 4 bolts and the fuel rail and injectors as an assembly.
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To install, tighten to 23 Nm (17 lb-ft).
9. Remove the fuel injectors. Remove and discard the O-ring seals.
10. NOTICE: O-ring seals are made of special fuel-resistant material. Fuel will damage ordinary O-ring seals and may cause the fuel system
to leak.
NOTICE: Do not reuse O-ring seals. The removal and installation process may damage the used O-ring seals, and cause the fuel system to
leak.
NOTE: Install new fuel injector O-ring seals and lubricate them with clean engine oil.
To install, reverse the removal procedure.
