Section 03-04A: Fuel Charging and Controls, 4.9L Engine
1996 Vehicles Equipped with 4.9L SFI Engines Workshop Manual
REMOVAL AND INSTALLATION

Fuel Pressure Regulator

Removal

  1. Perform Pre-Service Procedures as described in Fuel Charging System in the Removal and Installation portion of this section.

    ItemPart NumberDescription
    1—Fuel Supply Tube Connection
    (Part of 9D280)
    2—Fuel Return Tube Connection
    (Part of 9D280)
    3—Injector Connector
    (Part of 9D280)
    49C968Fuel Pressure Regulator
    59D280Fuel Injection Supply Manifold
    69H323Fuel Pressure Relief Valve Cap
    79H321Fuel Pressure Relief Valve

  1. Remove vacuum tube at fuel pressure regulator (9C968).

  1. Remove two Allen screws from fuel pressure regulator housing.

  1. Remove fuel pressure regulator, gasket and O-rings. Discard return seal and inspect O-rings for signs of cracks or deterioration.

Installation

  1. NOTE: If scraping is necessary, be careful not to damage fuel pressure regulator or fuel injection supply manifold gasket surfaces.

    Make sure O-ring surfaces of fuel pressure regulator and fuel injection supply manifold (9D280) are clean.

  1.  CAUTION: Never use silicone grease. It will clog the fuel injectors (9F593).

    Lubricate fuel pressure regulator O-ring with light oil XO-10W30-QSP meeting Ford specification ESE-M2C153-E or equivalent.

  1. Install O-ring and new fuel pressure regulator gasket (9C977) on fuel pressure regulator gasket.

  1. Install fuel injectors on fuel injection supply manifold. Tighten two Allen screws to 3-5 Nm (27-44 lb-in).

  1. Install vacuum tube at fuel pressure regulator.

  1. Perform Post-Service Procedures as described in Fuel Charging System in the Removal and Installation portion of this section.