Fuel Rail & Injectors (MFI): Installation

To install, reverse removal procedure. Coat NEW injector "O" rings with clean engine oil. Install injector-to-fuel rail retaining clip with open end facing injector electrical connection. Position fuel rail on intake manifold. Push down on rail to seat injectors in manifold. Tighten fuel rail retaining bolts. Refer to the appropriate TORQUE SPECIFICATIONS . To complete installation, reverse removal procedure.

Fig 1: Locating Fuel Rail Assembly Components (3.1L VIN M - Typical)

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Fig 2: Locating Fuel Rail Assembly Components (3.4L)

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Fig 3: Locating Fuel Rail Assembly Components (3.8L)

Courtesy of GENERAL MOTORS CORP.