Fuel Rail: Installation

WARNING: This page is about a different variant/trim than selected.

NOTE: Note the correct orientation of the fuel injector support rings for correct installation of the new fuel injector support rings.
- Remove and discard the fuel injector O-rings.
- Remove and discard the fuel injector support rings.
Courtesy of FORD MOTOR COMPANY
NOTE: Use care when removing the lower Teflon ® seals, not to scratch, nick or gouge the fuel injectors.

NOTE: Do not attempt to cut the lower Teflon ® seal without first pulling it away from the fuel injector or damage to the injector may occur.
1. Pull the lower Teflon ® seal away from the injector with narrow tip pliers.
2. Carefully cut, remove and discard the lower fuel injector Teflon ® seals.
Courtesy of FORD MOTOR COMPANY
NOTE: Do not lubricate the new lower Teflon ® fuel injector seals.
1. Install the Arbor (part of the Fuel Injector Seal Installer) on the fuel injector tips.
  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 Arbor, using the Pusher Tool (part of the Fuel Injector Seal Installer), slide the Teflon ® seals along the Arbor.
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.
Courtesy of FORD MOTOR COMPANY
NOTE: Install the fuel injectors into the cylinder head within 15 minutes of sizing the seals due to Teflon ® seal expansion.

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.
Courtesy of FORD MOTOR COMPANY
NOTE: Use new fuel injector O-ring seals that are made of special fuel-resistant material. The use of ordinary O-ring seals may cause the fuel system to leak. Do not reuse the O-ring seals.

NOTE: Do not lubricate the new lower Teflon ® fuel injector seals.
- Install the new the fuel injector support rings as noted during removal.
- Install the new fuel injector O-rings and lubricate with clean engine oil.
Courtesy of FORD MOTOR COMPANY
Install the new the fuel injector clips.

Courtesy of FORD MOTOR COMPANY
NOTE: The FRP sensor must be replaced only if it is removed from the fuel rail.

NOTE: The fuel injector clip must lock into the slot of the fuel rail cup.

Install the fuel injectors to the fuel rail. Refer to: Fuel Rail Pressure (FRP) Sensor .

Courtesy of FORD MOTOR COMPANY
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 the sequence displayed below.

Torque: 17 lb.ft (23 Nm)

Fig 1: Fuel Rail Bolts Tightening Sequence
Courtesy of FORD MOTOR COMPANY
NOTE: Make sure that a new high pressure fuel tube is installed.

NOTE: Only tighten the high pressure fuel tube flare nuts finger tight at this stage.

NOTE: Calculate the correct torque wrench setting for the following torque using the Torque Wrench Adapter Formulas displayed below.

Tighten the high-pressure fuel tube flare nuts in the following 3 stages.

Torque:

Stage 1: 15 lb.ft (21 Nm)

Stage 2: Wait 5 min

Stage 3: 15 lb.ft (21 Nm)

Courtesy of FORD MOTOR COMPANY
Attach the wire harness retainers and connect the FRP electrical connector.

Courtesy of FORD MOTOR COMPANY
Install the ignition coil-on-plugs. Refer to: Ignition Coil-On-Plug .
Connect the battery. Refer to: Battery Disconnect and Connect .
Pressurize the fuel system. Refer to: Fuel System Pressure Release .