Cooling System

Coolant Hose Connection Diagram, without Auxiliary Heater





1 Radiator

• Removing and installing, refer to => [ Radiator ] Radiator

• Replace coolant after replacing

2 Right auxiliary cooler

• Removing and installing, refer to => [ Right Auxiliary Cooler ] Right Auxiliary Cooler

• Replace coolant after replacing

3 Coolant regulator for auxiliary cooler

4 Generator

5 Engine oil cooler

• Removing and installing, refer to => [ Engine Oil Cooler ] Engine Oil Cooler

• Replace coolant after replacing

6 After-run coolant pump (V51)

• Removing and installing, refer to => [ After-Run Coolant Pump ] Service and Repair

7 Coolant expansion tank

• Pressure relief valve in cap, checking => [ Pressure relief valve in cap,
checking ] Component Tests and General Diagnostics

8 Bleeder hole

• At coolant hose to heater core

9 Coolant thermostat

• For transmission oil cooler and ATF cooler

10 Transmission oil cooler

11 ATF cooler

12 Heater core

• Replace coolant after replacing

13 Engine Coolant Temperature (ECT) Sensor (G62)

14 Cylinder head/cylinder block

• Replace coolant after replacing

15 Coolant pump

• Removing and installing, refer to => [ Coolant Pump ] Coolant Pump

16 Coolant thermostat

• Removing and installing, refer to => [ Coolant Thermostat Housing ] Service and Repair

17 Left auxiliary cooler

• Removing and installing, refer to => [ Left Auxiliary Cooler ] Left Auxiliary Cooler

• Replace coolant after replacing