Water Pump: Service and Repair
Water Pump Replacement (LSA)
Removal Procedure
1. Remove the air cleaner resonator and outlet duct assembly. Refer to Air Cleaner Resonator and Outlet Duct Replacement (L99 or LS3) Air Cleaner Resonator and Outlet Duct ReplacementAir Cleaner Resonator and Outlet Duct Replacement (LSA) Air Cleaner Resonator and Outlet Duct Replacement.
2. Drain the cooling system. Refer to Cooling System Draining and Filling (GE 47716) Cooling System Draining and Filling (GE 47716)Cooling System Draining and Filling (LFX, Static Fill) Cooling System Draining and Filling (Static Fill)Cooling System Draining and Filling (LSA, LS3, L99 Static Fill) Cooling System Draining and Filling (Static Fill).
3. Remove the supercharger belt idler pulley bracket. Refer to Supercharger Belt Idler Pulley Bracket Replacement Supercharger Belt Idler Pulley Bracket Replacement.
4. Remove the lower drive belt idler pulley. Drive Belt Idler Pulley Replacement (LSA Upper) Drive Belt Idler Pulley Replacement (Upper)Drive Belt Idler Pulley Replacement (LSA Lower) Drive Belt Idler Pulley Replacement (Lower).
5. Remove the supercharger belt tensioner bracket. Refer to Supercharger Belt Tensioner Bracket Replacement Supercharger Belt Tensioner Bracket Replacement.
6. Disconnect the radiator inlet hose (1) from the water pump.
7. Disconnect the radiator outlet hose (1) and the heater inlet/outlet hoses (2).
8. Remove the water pump fasteners (1) and the water pump seals (2).
9. Remove the water pump (3) from the engine compartment.
Installation Procedure
Caution:
DO NOT use cooling system seal tabs, or similar compounds, unless otherwise instructed. The use of cooling system seal tabs, or similar compounds, may restrict coolant flow through the passages of the cooling system or the engine components. Restricted coolant flow may cause engine overheating and/or damage to the cooling system or the engine components/assembly.
Note: All gasket surfaces are to be free of oil or other foreign material during assembly.
1. Install the water pump (3) and NEW gaskets (2).
Caution: Refer to Fastener Caution Fastener Caution.
2. Install the water pump fasteners (1).
1. Tighten the water pump fasteners a first pass to 15 Nm (11 lb ft).
2. Tighten the water pump fasteners a final pass to 30 Nm (22 lb ft).
3. Connect the heater inlet and outlet hoses (2) to the water pump.
4. Connect the radiator outlet hose (1) to the water pump inlet pipe.
5. Connect the radiator inlet hose (1) to the water pump.
6. Install the drive belt idler pulley. Refer to Drive Belt Idler Pulley Replacement (LSA Upper) Drive Belt Idler Pulley Replacement (Upper)Drive Belt Idler Pulley Replacement (LSA Lower) Drive Belt Idler Pulley Replacement (Lower).
7. Install the supercharger belt tensioner bracket. Refer to Supercharger Belt Tensioner Bracket Replacement Supercharger Belt Tensioner Bracket Replacement.
8. Install the supercharger belt idler pulley bracket. Refer to Supercharger Belt Idler Pulley Bracket Replacement Supercharger Belt Idler Pulley Bracket Replacement.
9. Fill the cooling system. Refer to Cooling System Draining and Filling (GE 47716) Cooling System Draining and Filling (GE 47716)Cooling System Draining and Filling (LFX, Static Fill) Cooling System Draining and Filling (Static Fill)Cooling System Draining and Filling (LSA, LS3, L99 Static Fill) Cooling System Draining and Filling (Static Fill).
10. Install the air cleaner resonator and outlet duct assembly. Refer to Air Cleaner Resonator and Outlet Duct Replacement (L99 or LS3) Air Cleaner Resonator and Outlet Duct ReplacementAir Cleaner Resonator and Outlet Duct Replacement (LSA) Air Cleaner Resonator and Outlet Duct Replacement.