Fuel Injector: Service and Repair

WARNING: The fuel system on natural gas vehicles is pressurized to 830 kPa (120 psi).


REMOVAL
1. Perform fuel pressure release procedure.





2. Remove fuel injection supply manifold.

Fuel Injector:

3. Carefully remove connectors from fuel charging wiring to individual fuel injectors as required.
4. Grasping fuel injector body, pull up while gently rocking fuel injector from side to side.
5. Inspect fuel injector O-rings (two per fuel injector) for signs of deterioration. Replace as required.





6. Inspect fuel injector end cap, body and washer for signs of dirt and deterioration.

INSTALLATION
1. Lubricate new O-rings with clean engine oil XO-10W30-QSP or equivalent meeting Ford specification WSS-M2C 153-F.

CAUTION: Never use silicone grease. It will clog the fuel injectors.

2. Install fuel injectors using a light, twisting-pushing motion.
3. Install fuel injection supply manifold as described.
4. Install connectors from fuel charging wiring to fuel injectors.
5. Perform Post-Service Procedures. Service and Repair