9-7X V8-5.3L (2005)
1. Install the service port cap (7) and valve (6) to the fuel rail (5).
2. Lubricate the NEW fuel rail crossover pipe O-rings (11) with clean engine oil.
3. Install the NEW fuel rail crossover pipe O-rings (11) onto the crossover pipe (10).
4. Install the fuel rail crossover pipe (10) to the left and right hand fuel rails.
5. Install the fuel rail crossover fuel pipe retainer clips (9).
Important: When installing the retaining clip screws for the fuel rail crossover pipe, always start the screws by hand. This will prevent
stripping of the threads on the fuel rail.
6. Install the fuel rail retainer clip screws (8) but do not tighten at this time.
7. Install the fuel injectors (2) to the fuel rail (5). Refer to Fuel Injector Replacement (See: Fuel Injector/Service and Repair/Removal and
Replacement).
Installation Procedure
Caution: The fuel rail stop bracket must be installed onto the engine assembly. The stop bracket serves as a protective shield for the fuel rail in the
event of a vehicle frontal crash. If the fuel rail stop bracket is not installed and the vehicle is involved in a frontal crash, fuel could be sprayed possibly
causing a fire and personal injury from burns.
