High-Pressure Fuel Pump: Removal
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Do not loosen any fittings or plugs on the high-pressure fuel pump.
- With the vehicle in NEUTRAL, position it on a hoist. Refer to: Jacking and Lifting - Overview .
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NOTE: PowerBoost shown in illustrtaoin, EcoBoost is similar.
Remove the engine appearance cover retainers, release the engine appearance cover from the rear retaining tabs on the intake manifold, then remove the engine appearance cover.
- Release the fuel system pressure. Refer to: Fuel System Pressure Release .
- Disconnect the battery. Refer to: Battery Disconnect and Connect .
- Disconnect the high-pressure fuel pump electrical connector.
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- Disconnect the secondary latch and position out of the way.
- Disconnect the spring lock coupling, then disconnect the high-pressure fuel pump supply line. Refer to: Spring Lock Couplings .
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NOTE: To release the fuel pressure in the high-pressure fuel tube, wrap the flare nuts with a shop towel to absorb any residual fuel pressure during the loosening the flare nuts.
- Disconnect the flare nuts, then remove and discard the high-pressure fuel tube.
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- Remove the high-pressure fuel pump bolts by alternately loosening the bolts one complete revolution at a time, then remove the high-pressure fuel pump.
- Remove and discard the high-pressure fuel pump O-ring seal.
- Remove the roller tappet.
- Inspect the roller tappet. If any flat spots or scoring are found, especially in the indicated areas, then inspect the high-pressure fuel pump and the roller tappet drive lobe. Install new components as needed.
- Remove any dirt or foreign material from the high-pressure fuel pump bolt holes.