Ford F250 Super Duty Fuel Rail Replacement | Service and Repair
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.
NOTICE: Fuel injection equipment is manufactured to very precise tolerances and fine clearances. It is therefore essential that absolute
cleanliness is observed when working with these components. Always install blanking plugs to any open orifices or tubes.
NOTICE: When reusing liquid or vapor tube connectors, make sure to use compressed air to remove any foreign material from the connector
retaining clip area before separating from the tube.
1. Release the fuel system pressure.
2. Disconnect the battery ground cable.
3. Remove the Air Cleaner (ACL) outlet tube.
4. Disconnect the quick connect couplings and remove the crankcase vent tube.
5. Disconnect the vacuum hose from the ACL outlet pipe-to-Throttle Body (TB) adapter and position aside.
6. Disconnect the wiring harness retainer from the ACL outlet pipe-to-TB adapter.
7. Remove the 4 ACL outlet pipe-to-TB adapter bolts.
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To install, tighten to 10 Nm (89 lb-in).
8. Remove the ACL outlet pipe-to-TB adapter.
9. Disconnect the quick connect couplings and remove the PCV tube.
10. Disconnect the Evaporative Emission (EVAP) tube quick connect coupling from the intake manifold and position aside.
11. Disconnect the fuel rail pressure and temperature sensor electrical and vacuum connectors.
12. Disconnect the 8 fuel injector electrical connectors.
13. Disconnect the Electronic Throttle Control (ETC) electrical connector.
14. Disconnect the Throttle Position (TP) sensor electrical connector.
15. If equipped, disconnect the heated PCV intake fitting electrical connector.
16. Disconnect the fuel supply tube spring lock coupling.
17. NOTE: When removing the fuel rail, leave the fuel injectors in the intake manifold. This will make removal of the fuel rail easier.
Remove the 4 fuel rail bolts and the fuel rail.
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To install, tighten to 10 Nm (89 lb-in).
