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108. Fuel Rail and Injectors Installation




Fuel Rail and Injectors Installation





Warning:
Refer to Fuel Rail Stop Bracket Installation Warning Fuel Rail Stop Bracket Installation Warning.


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 (532 and 534) with clean engine oil.

2. Install the O-ring seals to the fuel injectors.

3. Install the fuel injectors (533) and retainers (521).





4. Install the fuel rail assembly (510) to the manifold. Push firmly on both sides of the rail until all injectors have entered their bores.

5. 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 bolts. Refer to Adhesives, Fluids, Lubricants, and Sealers [1][2]Fluid Type Specifications.

Caution:
Refer to Fastener Caution Fastener Caution.

6. Install the fuel rail bolts (511 and 512) and fuel rail ground strap (557). Tighten the fuel rail bolts to 10 Nm (89 lb in).





7. Inspect the fuel rail ground strap (557) for proper installation.