85. Fuel Rail and Injectors Installation

Fuel Rail and Injectors Installation

Important: DO NOT reuse fuel injector O-ring seals. Install NEW fuel injector O-ring seals during assembly.





1. Lubricate the NEW fuel injector O-ring seals with clean engine oil.
2. Install the O-ring seals onto the fuel injectors.
3. Install the fuel rail (with fuel injectors) into the intake manifold.
Press evenly on both sides of the fuel rail until all of the injectors are seated in their bores.
4. Apply a 5 mm (0.2 inch) band of threadlock GM P/N 12345382 or equivalent to the threads of the fuel rail bolts.


Caution: Refer to Fuel Rail Stop Bracket Installation Caution in Service Precautions.

Notice: Refer to Fastener Notice in Service Precautions.

5. Install the fuel rail bolts.
Tighten the fuel rail bolts to 10 Nm (89 inch lbs.).