C 3500 Truck 2WD V8-454 7.4L VIN J SFI (1999)
slip off of the injector. Be sure to retain O-ring backup for reuse.
Installation Procedure
IMPORTANT: Ensure that the O-ring backups are on the injectors before installing the new O-rings. Lubricate the new injector O-ring seals
with clean engine oil and install on the spray tip end of each injector.
1. Install the fuel rail assembly in intake manifold. Tilt the rail assembly to install the injectors.
NOTE: Refer to Fastener Notice in Cautions and notices.
2. Install the fuel rail attaching bolts.
Tighten
Tighten the fuel rail attaching bolts to 10 N.m (89 lb in).
3. Connect the injector electrical connectors.
4. Install the new O-rings on the fuel pipes.
NOTE: Refer to Fastener Notice in Cautions and Notices.
5. Connect the fuel feed and return lines.
Tighten
^
Engine fuel pipe nuts to 27 N.m (20 lb ft).
^
Use a back-up wrench on the fittings to prevent them from turning.
6. Connect the negative battery cable.
7. Install the fuel filler cap.
8. Check for fuel leaks.
8.1. Turn the ignition switch to the ON position for 2 seconds.
