Engine Compartment

CAUTION: Do not attempt to repair the engine fuel feed pipe or the engine fuel return pipe. Replace a damaged engine fuel feed pipe or the engine fuel return pipe.

SPECIAL TOOLS REQUIRED (or equivalents)
- J 37088 tool set, Fuel Pipe Quick-Connect Separator.

REMOVE OR DISCONNECT
1. Relieve the fuel system fuel pressure, refer to Fuel Pressure Release.
2. Clean all engine fuel pipe connections and areas surrounding the engine fuel pipe connections before disconnecting the engine fuel pipe connections to avoid possible contamination of the fuel system.




3. Quick-connect fittings in the engine compartment. Refer to Fuel Line Coupler / Metal Collar Fittings.
4. Plug the chassis fuel feed pipe and the chassis fuel return pipe as required.
5. Upper intake manifold assembly.




6. Engine fuel return pipe from the fuel pressure regulator. Discard the O-ring.




7. Engine fuel feed pipe from the fuel rail. Discard the O-ring.

INSTALL OR CONNECT
1. Lubricate the new O-ring with clean engine oil, then connect the O-ring and the engine fuel return pipe to the fuel pressure regulator.
2. Lubricate the new O-ring with clean engine oil, then connect the O-ring and the engine fuel feed pipe to the fuel rail.
3. Tighten the engine fuel pipe fittings to 17 N.m (13 lb ft).
4. Upper intake manifold assembly.
5. Quick-connect fittings in the engine compartment.
6. Tighten the fuel tank filler pipe cap.
7. Negative battery cable.
8. Inspect for leaks:
a. Turn the ignition switch to the ON position for 2 seconds.
b. Turn the ignition switch to the OFF for 10 seconds.
c. Turn the ignition switch to the ON position.
d. Check for fuel leaks.