Fuel Pressure Regulator: Service and Repair
REMOVAL1. Disconnect battery ground cable.
NOTE: When the battery has been disconnected and reconnected, some abnormal drive symptoms may occur while the Powertrain Control Module (PCM) relearns its adaptive strategy. The vehicle may need to be driven 10 miles or more to relearn the strategy.
2. Remove fuel tank filler cap and release fuel tank pressure.
3. Perform fuel pressure release.
4. Remove vacuum line at fuel pressure regulator.
5. Remove two fuel injection supply manifold-to-intake manifold retaining bolts. Carefully lift fuel injection supply manifold (regulator side only) off fuel injectors to gain access to fuel pressure regulator retaining screws.
6. Remove two Allen-head retaining screws from fuel pressure regulator housing and discard.
7. Remove fuel pressure regulator, return seal and O-rings. Discard return seal and O-rings.
INSTALLATION
1. Lubricate new fuel pressure regulator O-rings with clean engine oil meeting Ford specification WSS-M2C153-F.
2. Make sure sealing surfaces of fuel pressure regulator and fuel injection supply manifold are clean.
NOTE: If scraping is necessary, do not damage fuel pressure regulator or fuel injection supply manifold sealing surfaces.
3. Install new fuel pressure regulator return seal and O-rings on return port.
4. Using new Allen-head retaining screws, install fuel pressure regulator on fuel injection supply manifold. Tighten three retaining screws to 3.75 Nm (33 lb in).
5. Carefully install fuel injection supply manifold to fuel injectors. If fuel injectors were completely disengaged from fuel injection supply manifold cups, lubricate fuel injector O-rings with clean engine oil prior to inserting in fuel injection supply manifold cups. Use engine oil meeting Ford specification WSS-M2C153-F. Push fuel injection supply manifold down on fuel injectors and tighten retaining bolts to 8-12 Nm (71-106 lb in) while holding down on fuel injection supply manifold.
6. Perform Post-Service Procedures. Service and Repair