Fuel Injector: Service and Repair

REMOVAL
1. 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 intake manifold.
5. Disconnect connectors from engine control sensor wiring at fuel injectors.
6. Remove fuel injection supply manifold retaining bolts.
7. Raise and slightly rotate fuel injection supply manifold and remove fuel injectors.

INSTALLATION
1. Inspect fuel injector O-ring seals for damage or deterioration. Replace if necessary.
2. Lubricate fuel injector O-rings with clean engine oil meeting Ford specification WSS-M2C153-F.
3. Install fuel injectors in fuel injection supply manifold. Lightly twist and push fuel injectors into position.
4. Install fuel injection supply manifolds and make sure fuel injectors seat properly in cylinder heads.
5. Install fuel injection supply manifold retaining bolts. Tighten to 15-23 Nm (11-16 lb ft).
6. Connect engine control sensor wiring at fuel injectors.
7. Install intake manifold.
8. Perform Post-Service Procedures. Service and Repair