LaCrosse FWD V6-3.0L (2010)
2. Install NEW direct injector hold down clamps to the injector.
3. Hand tighten the two outer fuel rail bolts to seat the injector in the injector bores.
4. Start and hand tighten the remaining fuel rail bolts and tighten the fuel rail bolts (1).
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
5. Tighten the fuel rail bolts in the sequence shown:
1. Tighten the Bank 1 fuel rail bolts first pass to 12 Nm (106 lb in).
2. Tighten the Bank 1 fuel rail bolts final pass to 23 Nm (17 lb ft).
6. Install the fuel feed intermediate pipe. Refer to Fuel Feed Intermediate Pipe Replacement (LLT) (See: Fuel Supply Line/Service and Repair/Fuel
Feed Intermediate Pipe Replacement)Fuel Feed Intermediate Pipe Replacement (LF1) (See: Fuel Supply Line/Service and Repair/Fuel Feed
Intermediate Pipe Replacement).
7. Install the high pressure fuel sensor. Refer to Fuel Pressure Sensor Replacement - Fuel Injection Fuel Rail (LLT) (See: Fuel Pressure
Sensor/Switch/Service and Repair/Fuel Pressure Sensor Replacement - Fuel Injection Fuel Rail)Fuel Pressure Sensor Replacement - Fuel Injection
Fuel Rail (LF1) (See: Fuel Pressure Sensor/Switch/Service and Repair/Fuel Pressure Sensor Replacement - Fuel Injection Fuel Rail).
8. Connect the fuel injector wiring harness electrical connector to the fuel injectors, fuel rail and fuel pressure sensor.
9. Inspect for fuel leaks using the following procedure:
1. Turn ON the ignition, with the engine OFF for 2 seconds.
2. Turn OFF the ignition, for 10 seconds.
3. Turn ON the ignition, with the engine OFF.
4. Inspect for fuel leaks.
Note: Before installing the foam insulator, remove any remaining fuel from the injector well.
10. Install the foam insulator to the fuel rails.
11. Install the intake manifold. Refer to Intake Manifold Replacement (LLT) (See: Engine, Cooling and Exhaust/Engine/Intake Manifold/Service and
Repair/Intake Manifold Replacement)Intake Manifold Replacement (LF1) (See: Engine, Cooling and Exhaust/Engine/Intake Manifold/Service
and Repair/Intake Manifold Replacement).
12. Install the fuel pipe shield. Refer to Fuel Pipe Shield Replacement (LLT) (See: Fuel Supply Line/Service and Repair/Fuel Pipe Shield
Replacement)Fuel Pipe Shield Replacement (LF1) (See: Fuel Supply Line/Service and Repair/Fuel Pipe Shield Replacement).
13. Install the cylinder head. Refer to Cylinder Head Replacement - Left Side (LF1) (See: Engine, Cooling and Exhaust/Engine/Cylinder Head
Assembly/Service and Repair/Cylinder Head Replacement - Left Side)Cylinder Head Replacement - Left Side (LLT) (See: Engine, Cooling and
Exhaust/Engine/Cylinder Head Assembly/Service and Repair/Cylinder Head Replacement - Left Side).
14. Install the low side fuel pressure service port cap.
15. Install the fuel tank cap.