High-Pressure Fuel Pump: Removal
WARNING: This page is about a different variant/trim than selected.
NOTE:
Fuel injection equipment is manufactured to very precise tolerances and fine clearances. To prevent fuel system damage, it is essential that absolute cleanliness is observed when working with these components.
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 .
- Release the fuel system pressure. Refer to: Fuel System Pressure Release .
- Disconnect the battery. Refer to: BATTERY DISCONNECT AND CONNECT .
- Remove the intake manifold. Refer to: Intake Manifold .
- Disconnect the high-pressure fuel pump electrical connector and the sensor connector.
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NOTE: When removing or installing the high-pressure fuel pump noise insulator, spreading the openings will reduce the risk of damage.
Remove the high-pressure fuel pump noise insulator.
- Disconnect the electrical connector, then detach the wiring harness retainers and move out of the way.
- Remove the nuts, then remove the bracket.
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NOTE: To release the fuel pressure in the high-pressure fuel tube, wrap the high-pressure fuel pump flare nut with a shop towel to absorb any residual fuel pressure during the loosening of high-pressure fuel pump flare nut.
Remove the high-pressure fuel tube bracket bolt and studbolt. Loosen the high-pressure fuel tube flare nuts, then disconnect, remove and discard the high-pressure fuel tube.
- Disconnect the high-pressure fuel pump fuel feed tube quick release coupling. Refer to: QUICK RELEASE COUPLING - 2.3L
.
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- Alternately loosen the high-pressure fuel pump bolts one complete revolution at a time. Remove and discard the high-pressure fuel pump bolts.
- Remove the high-pressure fuel pump and the mounting plate.
- Remove and discard the high-pressure fuel pump O-ring seal.
- Remove the high-pressure fuel pump tappet.