93. Fuel Rail and Injectors Installation

Fuel Rail and Injectors Installation





Note: DO NOT use the fuel injector O-ring seals again. Install NEW fuel injector O-ring seals during assembly.

1. Lubricate the NEW fuel injector O-ring seals (2) with clean engine oil.
2. Install the O-ring seals to the fuel injectors.
3. Install the fuel injectors (3) and retainers (1).




4. Install the wiring harnesses (2) and (3) onto the fuel rail (1).




5. Install the fuel rail assembly (3). Install the right side first, then install the left side with flex hose until all injectors have entered their bores.
6. Apply a 5 mm (0.2 in) band of threadlock GM P/N 12345382 (Canadian P/N 10953489), or equivalent, to the threads of the fuel rail studs and bolt. Refer to Adhesives, Fluids, Lubricants, and Sealers Adhesives, Fluids, Lubricants, and Sealers.

Caution: Refer to Fastener Caution Fastener Caution.

7. Install the fuel rail studs (1) and bolt (2) and tighten to 10 Nm (89 lb in).