High-pressure fuel pump — removal and installation Ford F150
Note: 2.7L and 3.5L turbocharged models and all 2018 and later models are equipped with Direct Injection (DI) and a high-pressure fuel pump.
Warning: Fuel pressure in the high-pressure system on Direct Injection (Dl) systems is under extremely high presscire. Be sure to correctly perform the fuel pressure release procedure prior to servicing any of the high-pressure fuel system components to prevent injury (see Fuel pressure relief procedure).
Warning: The fuel delivery system is made up of a low-pressure system and a high-pressure system. Once the pressure on the low-pressure side of the system has been relieved, wait at least two hours before loosening any fuel line fittings in the engine compartment. Note: On 2.7L models, the high-pressure fuel pump is located on the rear of the passenger (right) cylinder head. On 3.5L turbocharged models and 2018 and later 5.0L models, the high-pressure fuel pump is located on the top of the passenger’s (right) side valve cover. On 3.3L engines the high-pressure fuel pump is located on the left (driver’s side) valve cover.
Removal
1. Remove the two nuts at the front of the engine cover. Lift up at the front and unhook the retainers at the rear of the cover to remove.
2. Release the fuel pressure (see Fuel pressure relief procedure).
3. Disconnect the cable from the negative terminal of the battery (see Battery – disconnection and reconnection).
4. Remove the intake manifold (see Intake manifold(s) – removal and installation).
5. 2.7L models: Loosen the right-front wheel lug nuts, then raise the vehicle and support it securely on jackstands. Remove the inner fender splash shield (see Body).
Note: Raising the vehicle and working through the fenderwell makes access to certain parts of this procedure easier.
6. Locate the high-pressure fuel pump and disconnect the electrical connector.
Location of the fuel line quick-connect fitting on the high-pressure fuel pump at the rear of the right-side cylinder head (2.7L model shown)
7. Disconnect the fuel supply hose quick-connect fitting at the high-pressure fuel pump.
8. Remove and discard the fuel feed line between the high-pressure fuel pump and fuel rail.
Warning: The high-pressure feed lines are not to be re-used; obtain new feed lines for installation.
9. On 2016 and earlier 3.5L turbocharged models, remove the bolt attaching the fuel feed pipe to the intake manifold. Loosen the fuel feed line fitting at the high-pressure fuel pump. In this case, the fuel feed pipe can be reconnected and does not require replacement.
10. On 3.5L turbocharged models, disconnect the fuel line retainer bracket from the high-pressure fuel pump.
High-pressure fuel pump retaining nuts (2.7L shown)
11. On all models, alternately loosen the two high-pressure fuel pump mounting fasteners, one complete turn at a time, until removed
12. Carefully pull the high-pressure fuel pump out of the cylinder head.
13. If necessary, remove the high-pressure fuel pump tappet (note installation orientation during removal).
Note: Note the notch on the high-pressure fuel pump tappet and the groove in the high-pressure fuel pump bore.
Installation
14. Installation is reverse of removal noting the following points:
- Rotate the engine CLOCKWISE ONLY until the until the high-pressure fuel pump drive lobe is at its lowest point.
- Coat the bore with clean engine oil and align the notch on the high-pressure fuel pump tappet with the groove in the high-pressure fuel pump bore during installation.
- Use a new 0-ring on the high-pressure fuel pump. Coat the 0-ring in clean engine oil.
- Alternately tighten each of the high-pressure fuel pump nuts one complete turn until seated, then tighten them to the torque listed in this Chapter’s Specifications.
- Install a new fuel feed pipe.
- Tighten all fasteners to the torque values listed in this Chapter’s Specifications.
- Turn the ignition ON and check for leaks before starting the engine.