Fuel Rail: Removal
WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel-related components. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in personal injury.
WARNING:
Fuel in the fuel system remains under high pressure even when the engine is not running. Before working on or disconnecting any of the fuel tubes or fuel system components, the fuel system pressure must be relieved. Failure to follow these instructions may result in personal injury.
WARNING:
Fuel in the fuel system remains under high pressure even when the engine is not running. Before servicing or disconnecting any of the fuel lines or fuel system components, the fuel system pressure must be relieved to prevent accidental spraying of fuel, causing personal injury or a fire hazard.
CAUTION:
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.
CAUTION:
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.
- Release the fuel system pressure. For additional information, refer to FUEL SYSTEM - GENERAL INFORMATION - GASOLINE AND DIESEL article.
- Disconnect the battery ground cable. For additional information, refer to BATTERY, MOUNTING AND CABLES article.
- Remove the air cleaner outlet pipe. For additional information, refer to INTAKE AIR DISTRIBUTION AND FILTERING article.
- Disconnect the fuel supply tube spring lock coupling. For additional information, refer to FUEL SYSTEM - GENERAL INFORMATION - GASOLINE AND DIESEL article.
- Disconnect the 2 electrical connectors from the throttle body (TB).
- Disconnect the positive crankcase ventilation (PCV) tube quick connect coupling from the TB spacer. For additional information, refer to FUEL SYSTEM - GENERAL INFORMATION - GASOLINE AND DIESEL article.
- Disconnect the 2 vacuum hoses from the TB spacer.
- Disconnect the fuel rail pressure and temperature sensor electrical and vacuum connectors.
- Disconnect the 10 fuel injector electrical connectors.
- Detach the main engine wiring harness retainer from the RH valve cover.
- Detach the 2 main engine wiring harness retainers from the intake manifold and position the harness for access to remove the fuel rail.
- Remove the 6 fuel rail bolts and the fuel rail.
- To install, tighten to 10 N.m (89 lb-in).
- Remove the fuel injectors and the fuel injector O-ring seals.
- Discard the O-ring seals.
- To install, reverse the removal procedure.
NOTE:
When removing the fuel rail, leave the fuel injectors in the intake manifold. This will make removal of the fuel rail easier.
CAUTION:
Use O-ring seals that are made of special fuel-resistant material. Use of ordinary O-rings can cause the fuel system to leak. Do not reuse the O-ring seals. Lubricate the O-ring seals with clean engine oil prior to installation.