System Operation
| 1-COOLANT EXPANSION TANK | 8-UPPER TIMING CHAIN COVER |
| 2-ACCESSORY CARRIER BRACKET | 9-ENGINE BLOCK |
| 3-EGR COOLER | 10-WATER PUMP |
| 4-HEAT EXCHANGER/HEATER CORE | 11-TEMPERATURE SENSOR |
| 5-EGR BYPASS HOUSING | 12-THERMOSTAT HEATING ELEMENT |
| 6-EGR ACTUATOR | 13-RADIATOR |
| 7-OIL/WATER COOLER |
The cooling system also provides a means of heating the passenger compartment. The cooling system is pressurized and uses a centrifugal water pump to circulate coolant throughout the system. Gas engines use a separate and remotely mounted, ambient pressure coolant recovery bottle using a pressure/vent cap. Diesel engine use a separate and remotely mounted, pressurized coolant tank using a pressure/vent cap.
The cooling system consists:
- Radiator
- Coolant
- Electric Cooling Fan
- Water pump
- Dual Thermostats (Gas Engines)
- Charge air cooler (Turbocharged vehicles only)
- Hoses and clamps
- Transmission oil cooler
- Coolant Recovery system