Section 03-04C: Fuel Charging and Controls, 7.5L Engine | 1996 F-250, F-350 and F-Super Duty Vehicles Equipped with 7.5L MFI V-8 Engines Workshop Manual |
Removal
Perform pre-service procedures as described in Fuel Charging System in the Removal and Installation portion of this section.
Remove vacuum line at fuel pressure regulator (9C968).
Remove two socket head retaining screws from fuel pressure regulator housing.
Remove fuel pressure regulator, return seal and O-rings. Discard return seal and O-rings.
If scraping is necessary, be careful not to damage fuel pressure regulator or fuel supply line seal surfaces.
| Item | Part Number | Description |
|---|---|---|
| 1 | N807244 | Return Seal |
| 2 | N807547 | O-Ring |
| 3 | N802353-S101 | Screws |
| 4 | 9C968 | Fuel Pressure Regulator |
| 5 | 9F792 | Fuel Injection Supply Manifold |
Installation
NOTE: Never use silicone grease. It will clog the fuel injectors (9F593).
Lubricate fuel pressure regulator O-rings with light oil XO-10W30-QSP or equivalent meeting Ford specification ESE-M2C153-E.
Make sure return seal surfaces of fuel pressure regulator and fuel injection supply manifold (9F792) are clean.
Install new O-rings on fuel pressure regulator inlet tube and a new return seal in the recess of the fuel rail return port.
Install fuel pressure regulator on fuel injection supply manifold. Tighten two retaining screws to 3-5 Nm (27-44 lb-in).
Install vacuum line to fuel pressure regulator.
Perform post-service procedures as described in Fuel Charging System in the Removal and Installation portion of this section.