Water Outlet Replacement

Water Outlet Replacement (LC3) (4.4L SC)

Removal Procedure




1. Drain the engine cooling system. Refer to Cooling System Draining and Filling (GE 47716) (Service and Repair)Cooling System Draining and Filling (Static Fill) (Service and Repair).
2. Drain the charge air cooling system. Refer to Charge Air Cooling System Draining and Filling (Static Fill) (Charge Air Cooling System Draining and Filling (Static Fill))Charge Air Cooling System Draining and Filling (Vac N Fill) (Charge Air Cooling System Draining and Filling (Vac N Fill)).
3. Remove the supercharger assembly. Refer to Supercharger Replacement (Supercharger Replacement).
4. Remove the supercharger belt tensioner. Refer to Supercharger Belt Tensioner Replacement (Supercharger Belt Tensioner Replacement).
5. Remove the inboard supercharger idler pulley. Refer to Belt Idler Pulley Replacement - Supercharger (Belt Idler Pulley Replacement - Supercharger).




6. Remove the two coolant hoses from the water outlet housing. Refer to Radiator Surge Tank Inlet Hose/Pipe Replacement (LY7) (Service and Repair)Radiator Surge Tank Inlet Hose/Pipe Replacement (LLT) (Service and Repair)Radiator Surge Tank Inlet Hose/Pipe Replacement (LH2) (Service and Repair).
7. Remove the radiator hose from the water outlet housing. Refer to Radiator Inlet Hose Replacement.
8. Reposition the lower clamp on the bypass hose.
9. Remove the bolts securing the water outlet housing to the cylinder heads.
10. Remove the water outlet housing along with the bypass hose from the engine.
11. Discard the water outlet housing gaskets.
12. Disassemble the water outlet housing if necessary. Refer to Water Outlet Housing Disassemble (Overhaul)
13. Clean and inspect the water outlet housing. Refer to Water Outlet Housing Cleaning and Inspection (Overhaul).

Installation Procedure




1. Assemble the water outlet housing if necessary. Refer to Water Outlet Housing Assemble (Overhaul).
2. Install NEW water outlet housing gaskets.
3. Install the water outlet housing with bypass hose to the vehicle.

Caution: Refer to Fastener Caution (Fastener Caution).

4. Install the water outlet housing bolts and tighten to 25 Nm (18 lb ft).
5. Install the bypass hose clamp in the proper position.
6. Install the radiator hose to the water outlet housing.
7. Install the two coolant hoses to the water outlet housing. Refer to Radiator Surge Tank Inlet Hose/Pipe Replacement (LY7) (Service and Repair)Radiator Surge Tank Inlet Hose/Pipe Replacement (LLT) (Service and Repair)Radiator Surge Tank Inlet Hose/Pipe Replacement (LH2) (Service and Repair).




8. Install the supercharger idler pulley. Refer to Belt Idler Pulley Replacement - Supercharger (Belt Idler Pulley Replacement - Supercharger).
9. Install the supercharger belt tensioner. Refer to Supercharger Belt Tensioner Replacement (Supercharger Belt Tensioner Replacement).
10. Install the supercharger assembly. Refer to Supercharger Replacement (Supercharger Replacement).
11. Fill the charge air cooling system with coolant. Refer to Charge Air Cooling System Draining and Filling (Static Fill) (Charge Air Cooling System Draining and Filling (Static Fill))Charge Air Cooling System Draining and Filling (Vac N Fill) (Charge Air Cooling System Draining and Filling (Vac N Fill)).
12. Fill the engine cooling system with coolant. Refer to Cooling System Draining and Filling (GE 47716) (Service and Repair)Cooling System Draining and Filling (Static Fill) (Service and Repair).
13. Check the engine cooling system for leaks.
14. Check the charge air cooling system for leaks.