LaCrosse V8-5.3L (2008)
2. If replacing the fuel rail, install the fuel injectors. Refer to Fuel Injector Replacement (See: Fuel Injector/Service and Repair/Removal and
Replacement).
3. If necessary, Lubricate the NEW O-ring seals with clean engine oil.
4. If necessary, install NEW O-ring seals to the fuel injectors.
5. Install the fuel rail (510) with injectors. Push firmly on both sides of the rail until all the injectors have been seated into 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 bolts.
Notice: Refer to Fastener Notice (See: Service Precautions/Vehicle Damage Warnings/Fastener Notice).
7. Install the fuel rail bolts (511).
Tighten the bolts to 10 N.m (89 lb in).
8. Install the ground strap (557) and intake manifold bolt (512).
Tighten the bolt to 10 N.m (89 lb in).
9. Connect the fuel feed (1) and EVAP (2) lines. Refer to Metal Collar Quick Connect Fitting Service (See: Fuel Line Coupler/Service and
Repair/Metal Collar Quick Connect Fitting Service) and Plastic Collar Quick Connect Fitting Service (See: Fuel Line Coupler/Service and
Repair/Plastic Collar Quick Connect Fitting Service).
