Fuel Rail: Installation

WARNING: This page is about a different car, the 2018 Ford EcoSport. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Do not lubricate the new lower Teflon® fuel injector seals.
1. Install the Teflon® Seal Guide onto the fuel injector tip. Use Special Service Tool: 310-207 Installer, Fuel Injector Seal Assembly.
2. NOTE: Once the Teflon® seal is installed on the Teflon® Seal Guide, it should immediately be installed onto the fuel injector to avoid excessive expansion of the Teflon® seal.
  
  NOTE: Make sure that new lower fuel injector Teflon® seals are installed.
  
  Install the new Teflon® seals onto the Teflon® Seal Guide, using the Pusher Tool, slide the Teflon® seals along the Teflon® Seal Guide.
3. Using the Pusher Tool, slide the Teflon® seals off of the Teflon® Seal Guide and into the groove on the fuel injectors. Use Special Service Tool: 310-207 Installer, Fuel Injector Seal Assembly.
4. Remove the special tools.
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NOTE: Make sure the Teflon® seal is fully seated in the groove on the fuel injector before sizing the Teflon® seal.
1. Massage and warm the Teflon® seal with your fingers before the Teflon® seal sizer tool is installed. This will aid in installing the Teflon® seal sizer tool.
2. Position the Teflon® seal sizer tool with the larger opening towards the Teflon® seal. Push while turning the Teflon® seal sizer tool 180 degrees. Use Special Service Tool: 303-1567 Sizer, Teflon Seal.
3. Once the Teflon® seal sizer tool is installed, check and make sure the Teflon® seal is in the sizing portion of the Teflon® seal sizer tool.
4. After one minute, turn the Teflon® seal sizer tool back 180 degrees and remove.
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NOTE: Make sure that new fuel injector support rings and new fuel injector O-ring seals are installed.
1. NOTE: The new the fuel injector support rings must be installed in the correct orientation with the wide surface area facing up against the fuel injector O-ring seals. Improperly installed support rings may cause the fuel system to leak.
  
  Install the new the fuel injector support rings.
2. NOTE: Do not lubricate the new lower Teflon® fuel injector seals.
  
  Install the new fuel injector O-ring seals.
3. NOTE: Make sure that new fuel injector clips are installed.
  
  Install the new the fuel injector clips.
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NOTE: The anti-rotation finger of the fuel injector must slip into the groove of the fuel rail cup.

Install the fuel injectors to the fuel rail.

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NOTE: Do not lubricate the new lower Teflon® fuel injector seals.

NOTE: Only tighten the fuel rail bolts finger tight at this stage.

Install the fuel rail, push down on the fuel rail above the injectors. Install and tighten the fuel rail bolts in sequence shown.

Torque: 17 lb.ft (23 Nm)

Fig 1: Fuel Rail Location W/ Bolt Tightening Sequence
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Connect the fuel injector electrical connectors.

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NOTE: Make sure that a new component is installed.

NOTE: Calculate the correct torque wrench setting for the following torque. Refer to the illustration below.

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Install the high-pressure fuel tube and tighten the flare nuts finger tight, then tighten the flare nuts in the following 3 stages.

Torque: Stage 1: 124 lb.in (14 Nm) Stage 2: 177 lb.in (20 Nm) Stage 3: Tighten an additional : 20 deg.

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Install the ignition coil-on-plugs. Refer to: Spark Plugs .
Reconnect the battery negative cable. Refer to: Battery Disconnect and Connect .
Pressurize the fuel system. Refer to: Fuel System Pressure Release .