83. Fuel Rail and Injectors Installation

Fuel Rail and Injectors Installation





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

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

Lubricate the NEW fuel injector O-ring seals (532, 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 inch) band of threadlock GM P/N 12345382 (Canadian P/N 10953489), or equivalent, to the threads of the fuel rail bolts. Refer to Sealers, Adhesives, and Lubricants.

6. Notice: Refer to Fastener Notice in Service Precautions.

Install the fuel rail bolts (511, 512) and fuel rail ground strap (557).
Tighten the fuel rail bolts to 10 Nm (89 inch lbs.).





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