Fuel Rail & Injectors: Installation
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CAUTION:
When ordering new fuel injectors, order the correct injector for the application being serviced.
CAUTION:
When installing the retaining clip attaching screw for the crossover pipe, always start the screw by hand. This will prevent consequent stripping of the threads in the fuel rail.
- The fuel injector (1) is stamped with a part number identification (2). A four-digit build date code (3), which indicates the month (4), day (5), year (6), and the shift (7) that built the fuel injector. See Fig 1.
- Lubricate the NEW fuel injector lower "O" ring seals with clean engine oil. Install the NEW "O" ring seals to the end of each injector. See Figure.
- Install a NEW crossover pipe "O"ring on the crossover pipe. Install the crossover pipe into the right fuel rail. Loosely install the crossover pipe retainer and retaining clip attaching screw to the right fuel rail. Install the fuel rail. Install the fuel rail bolts.
- To complete installation procedure, reverse removal procedure. Tighten all fasteners to specification. See TORQUE SPECIFICATIONS .
- Turn ignition on for 2 seconds. Turn ignition off for 10 seconds. Turn ignition on. Inspect for fuel leaks. Install the engine cover.
NOTE:
Apply a.020" (5 mm) band of Threadlock (GM P/N 12345382), to the threads of the fuel rail bolts.