Fuel Injection Fuel Rail Assembly Replacement - Bank 2

Fuel Injection Fuel Rail Assembly Replacement - Bank 2

Removal Procedure





1. Remove the fuel line bracket nut.
2. Remove the fuel line bracket from the stud.
3. Remove the charge air cooler inlet pipe. Refer to Charge Air Cooler Inlet Pipe Replacement (Charge Air Cooler Inlet Pipe Replacement) .
4. Remove the positive crankcase ventilation (PCV) hose/pipe. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement (Service and Repair) .
5. Remove the right fuel rail fuel feed pipe. Refer to Fuel Injection Fuel Feed Front Pipe Replacement - Right Side (Service and Repair) .
6. Remove the fuel return pipe. Refer to Fuel Return Pipe Replacement (Service and Repair) .




7. Remove the fuel pipe bracket bolt (4) and bracket (3).




8. Loosen the left fuel rail fuel feed pipe fittings (1).




9. Remove the left fuel rail fuel feed pipe.




10. Prior to removing the fuel injector pipes, use compressed air to blow any debris from between the injector line and fittings. Wipe the fittings clean of debris.
11. Spray lithium grease, GM P/N 12346293 or equivalent, between the fuel injector line and fittings to assist in containing any debris during removal.

Caution: DO NOT use compressed air to clean debris from the fuel injector inlet after the fuel line is removed. Using compressed air can allow debris to enter the fuel injector inlet and damage the fuel injector.

12. Remove the left fuel injection fuel feed pipes.




13. Remove the fuel injection fuel rail bolts.
14. Remove the fuel injection fuel rail and bracket.
15. Reposition the fuel hose clamp at the rail and remove the fuel hose, if required.



Installation Procedure





1. Install the fuel hose to the fuel injection fuel rail and position the clamp, if required.
2. Position the fuel injection fuel rail and bracket to the left intake manifold.
Caution: Refer to Fastener Caution (Fastener Caution) .
3. Install the fuel injection fuel rail bolts.

Tighten the bolts to 25 Nm (18 lb ft).






Caution: Ensure proper torquing of the fuel injector line. An under-torqued fuel injector line will not seal properly and an over-torqued fuel injector line may damage the fuel injector fitting. An improperly sealed or damaged fuel injector line or fuel injector fitting will cause a fuel leak.

4. Position the fuel injection fuel feed pipes.




5. Tighten the left fuel rail fuel feed pipe fittings (1).

Tighten the fittings to 41 Nm (30 lb ft).





6. Position the fuel pipe bracket (3) and install the bolt (4).

Tighten the bolt to 24 Nm (18 lb ft).





7. Install the fuel return pipe. Refer to Fuel Return Pipe Replacement (Service and Repair) .
8. Install the right fuel rail fuel feed pipe. Refer to Fuel Injection Fuel Feed Front Pipe Replacement - Right Side (Service and Repair) .
9. Install the PCV hose/pipe. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement (Service and Repair) .
10. Install the charge air cooler inlet pipe. Refer to Charge Air Cooler Inlet Pipe Replacement (Charge Air Cooler Inlet Pipe Replacement) .
11. Install the fuel line bracket to the stud.
12. Install the fuel line bracket nut.

Tighten the nut to 16 Nm (12 lb ft).

13. Prime the fuel system. Refer to Fuel System Priming (Fuel System Priming) .
14. Start the engine. If the engine stalls, repeat the above step.
15. Once the engine starts, inspect for fuel leaks.