High-Pressure Fuel Pump: Removal
WARNING: This page is about a different variant/trim than selected.
NOTE:
Do not loosen any fittings or plugs on the high-pressure fuel pump.
- Release the fuel system pressure. Refer to: Fuel System Pressure Release .
- Disconnect the negative battery cable. Refer to: Battery Disconnect and Connect .
- Loosen the clamps and then remove the air cleaner outlet pipe.
- Remove the bolts and the bracket.
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- Disconnect the high-pressure fuel pump electrical connector.
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- Disconnect the high-pressure fuel pump fuel feed tube quick release coupling. Refer to: Quick Release Coupling .
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NOTE: To release the fuel pressure in the high-pressure fuel pump-to-fuel rail 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 and discard the high-pressure fuel pump-to-fuel rail high-pressure fuel tube.
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NOTE: Alternately loosen the 2 high-pressure fuel pump bolts one complete revolution at a time.
Remove and discard the high-pressure fuel pump bolts, then remove the high-pressure fuel pump.
- Remove and discard the high-pressure fuel pump O-ring seal.
- Remove the high-pressure fuel pump tappet.
- Inspect the high-pressure fuel pump tappet. If any flat spots or scoring are found, especially in the indicated areas, then inspect the high-pressure fuel pump and the fuel pump tappet drive lobe. Install new components as needed.