Water Pump: Service and Repair

Water Pump Replacement (LTG)

Special Tools

BO-38185 - Hose Clamp Pliers

For equivalent regional tools, refer to Special Tools Tools and Equipment.

Removal Procedure

1. 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 (Static Fill) Cooling System Draining and Filling (Static Fill).

2. Remove the drive belt. Refer to Drive Belt Replacement Service and Repair.

3. Remove the exhaust manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement (LUK) Exhaust Manifold Heat Shield ReplacementExhaust Manifold Heat Shield Replacement (LCV) Exhaust Manifold Heat Shield ReplacementExhaust Manifold Heat Shield Replacement (LTG) Exhaust Manifold Heat Shield Replacement.




4. Using the BO-38185 hose clamp pliers, remove the radiator outlet hose (1) from the water outlet (2).




5. Remove the engine harness retainer (1) from the water pump (2).




6. Remove the thermostat bypass pipe fasteners (1) and remove the thermostat bypass pipe (2) from the water pump.

7. Discard the thermostat bypass pipe gasket (3).




8. Remove the water pump fasteners (1) and (2) remove the water pump (3).

9. Discard the water pump seal (4).

Installation Procedure





Caution: Refer to Fastener Caution Fastener Caution.

1. Install the water pump (3) into position with a NEW water pump seal (4) and hand tighten the bolts.

2. Tighten (1) bolts to 25 Nm (18 lb ft).

3. Tighten (2) bolt to 25 Nm (18 lb ft).




4. Install the thermostat bypass pipe (2) to the water pump with a NEW gasket (3) and tighten the fasteners (1) to 10 Nm (89 lb in).




5. Install the engine wiring harness retainer (1) to the water pump (2).




6. Using the BO-38185 hose clamp pliers, install the radiator outlet hose (1) to the water outlet (2).

7. Install the drive belt. Refer to Drive Belt Replacement Service and Repair.

8. Install the exhaust manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement (LUK) Exhaust Manifold Heat Shield ReplacementExhaust Manifold Heat Shield Replacement (LCV) Exhaust Manifold Heat Shield ReplacementExhaust Manifold Heat Shield Replacement (LTG) Exhaust Manifold Heat Shield 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 (Static Fill) Cooling System Draining and Filling (Static Fill).

10. Start the engine and check for coolant leaks.