Fuel Injector Supply Tube: Installation

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, 2019 Ford F-250 Super Duty, and 2018 Ford F-550 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

Left side

Loosen the fuel rail mounting bolts.

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NOTE: Use a deep-well crowfoot socket to tighten the fuel injector supply tube.

Position the new fuel injector supply tubes between the fuel rail and the fuel injectors. Fully hand-start and seat the fuel injector supply tube fittings onto the fuel rail and the fuel injectors. Tighten in the stages and in the sequence shown.

Torque: 1-2 fuel rail mounting bolts : 18 lb.ft (24 Nm) 3-6 fuel injector supply tube fittings to fuel injectors : 89 lb.in (10 Nm) 7-10 fuel injector supply tube fittings to fuel rail : 89 lb.in (10 Nm) 3-6 fuel injector supply tube fittings to fuel injectors : 65 deg. 7-10 fuel injector supply tube fittings to fuel rail : 65 deg.

Fig 1: Fuel Injector Supply Tubes Tightening Sequence
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Push down on the fuel injector return hose fitting tabs to connect the fuel injector return hose fittings to the fuel injectors.

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Push down on the center of the fuel injector return hose fittings to lock the fittings to the fuel injectors.

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- Attach the fuel injector fuel return line retainer to the fuel rail.
- Connect the fuel injector electrical connectors.
- Connect the fuel pressure control valve electrical connector.
- Connect the fuel charging wiring harness retainers to the fuel rail.
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Install the left engine sound shield and then install the left engine sound shield retainers.

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Install the left fender splash shield. Refer to: Fender Splash Shield .
Right side
Loosen the fuel rail mounting bolts.

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NOTE: Use a deep-well crowfoot socket to tighten the fuel injector supply tube.

Position the new fuel injector supply tubes between the fuel rail and the fuel injectors. Fully hand-start and seat the fuel injector supply tube fittings onto the fuel rail and the fuel injectors. Tighten in the stages and in the sequence shown.

Torque: 1-2 fuel rail mounting bolts : 18 lb.ft (24 Nm) 3-6 fuel injector supply tube fittings to fuel injectors : 89 lb.in (10 Nm) 7-10 fuel injector supply tube fittings to fuel rail : 89 lb.in (10 Nm) 3-6 fuel injector supply tube fittings to fuel injectors : 65 deg. 7-10 fuel injector supply tube fittings to fuel rail : 65 deg.

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Push down on the fuel injector return hose fitting tabs to connect the fuel injector return hose fittings to the fuel injectors.

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Push down on the center of the fuel injector return hose fittings to lock the fittings to the fuel injectors.

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- Connect the fuel injector electrical connectors.
- Connect the fuel charging wiring harness retainers to the fuel rail.
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Install the right engine sound shield and then install the right engine sound shield retainers.

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Install the right fender splash shield. Refer to: Fender Splash Shield .
Install the air cleaner. Refer to: AIR CLEANER (2018)Air Cleaner (2019) .
Both sides
Connect the battery. Refer to: BATTERY DISCONNECT AND CONNECT (2018)Battery Disconnect and Connect (2019) .
Bleed the Fuel System. Refer to: FUEL SYSTEM BLEEDING (2018)Fuel System Bleeding (2019) .