Fuel Rail: Service and Repair

WARNING: RELEASE FUEL SYSTEM PRESSURE BEFORE SERVICING FUEL RAIL. SERVICE VEHICLES IN WELL VENTILATED AREAS AND AVOID IGNITION SOURCES. NEVER SMOKE WHILE SERVICING THE VEHICLE.

REMOVAL
1. Release fuel system pressure.
2. Disconnect negative battery cable.
3. Remove intake manifold plenum.
4. Remove intake manifold plenum mounting bolts. Lift Plenum up off of engine. Cover intake manifold to prevent foreign material from entering engine.
5. Disconnect fuel supply tube quick connect fittings at the rear of intake manifold.
6. If the injector connectors are not tagged with their cylinder number, tag them to identify the correct cylinder
7. Remove fuel rail mounting bolts.
8. Lift fuel rail straight up off of cylinder head.
9. Remove retaining clips from fuel injectors at fuel rail.
10. Remove fuel injector from fuel rail.

INSTALLATION
1. Lightly lubricate the fuel injector O-rings with a couple drops of clean engine oil.
2. Install retaining clips on fuel injectors.
3. Push injectors into fuel injector rail until clip are in the correct position.
4. Position fuel rail over cylinder heads, and push rail into place. Tighten fuel rail mounting bolts to 11 Nm (100 in. lbs.) torque.
5. Install intake manifold plenum.
6. Connect negative cable to battery.