High-Pressure Fuel Pump: Installation

WARNING: This page is about a different car, the 2021 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

If removed, install and tighten the high-pressure fuel pump mounting studs.
Torque: 53 lb.in (6 Nm)

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NOTE: Only rotate the crankshaft Clockwise (CW) or damage to the engine may occur.

NOTE: The drive lobe for the high-pressure fuel pump must be at BDC (bottom dead center) for the high-pressure fuel pump installation.

With the help of an assistant, using the crankshaft pulley bolt, turn the crankshaft until the high-pressure fuel pump drive lobe is at BDC.

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Apply clean engine oil to the high-pressure fuel pump mounting pedestal bore, the drive lobe and the roller tappet. Refer to: Specifications

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Install the high-pressure fuel pump roller tappet.

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Install a new high-pressure fuel pump O-ring seal. Lubricate with clean engine oil. Refer to: Specifications

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Install the high-pressure fuel pump, then install the mounting nuts finger tight. Alternately tighten each high-pressure fuel pump nut one complete revolution until seated. Tighten the fuel high-pressure fuel pump nuts in the following 2 stages.
Torque: Stage 1: 89 lb.in (10 Nm) Stage 2: 30 deg.

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NOTE: The high-pressure fuel pump supply tube must be installed with the Oetiker® clamp end installed to the port fuel rail; if it is installed backwards a check valve will prevent the engine from running properly.

Connect the high-pressure fuel pump fuel feed quick release coupling. Follow the directions for the quick release coupling type 2. Refer to: Quick Release Coupling

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NOTE: In stage 6, if the torque required to tighten any flare nut on the new high-pressure fuel tube reaches or exceeds 37 lb.ft (50 Nm), then that high pressure fuel tube must be discarded and replaced with another new high-pressure fuel tube.

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

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NOTE: Make sure that a new high-pressure fuel tube is installed.

Install the high-pressure fuel tube and retainers, tighten the high-pressure fuel tube flare nuts and retainers finger tight.

Torque: Stage 1: Tighten the high-pressure fuel tube bolt to : 89 lb.in (10 Nm) Stage 2: Tighten the high-pressure fuel tube stud-bolt to : 89 lb.in (10 Nm) Stage 3: Tighten the high-pressure fuel tube stud-bolt an additional : 30 deg. Stage 4: Tighten the high-pressure fuel tube flare nuts to : 71 lb.in (8 Nm) Stage 5: Tighten the high-pressure fuel tube flare nuts to : 89 lb.in (10 Nm) Stage 6: Tighten the high-pressure fuel tube flare nuts an additional : 25 deg.

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Install the high-pressure fuel line shield, then install and tighten the high-pressure fuel line shield retainers.
Torque: 89 lb.in (10 Nm)

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Attach the wiring harness retainers to high-pressure fuel line shield.

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NOTE: When removing or installing the fuel injection pump noise insulator, spreading the openings will reduce the risk of damage.

Install the fuel injection pump noise insulator.

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Connect the high-pressure fuel pump electrical connector.

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Install the high-pressure fuel pump bracket, then install and tighten the bracket bolt.
Torque: 22 lb.ft (30 Nm)

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Install the intake manifold. Refer to: Intake Manifold
Pressurize the fuel system. Refer to: Fuel System Pressure Release