Engine Cooling: Overview

The engine cooling system maintains the engine within an optimum temperature range under changing ambient and engine operating conditions. The system is a pressurized expansion tank system with continuous bleeds to separate air from the coolant and prevent the formation of air locks.

The engine cooling system also provides:

• Heating for:
  • The passenger compartment. For additional information, Refer to: HEATING AND VENTILATION
  • The throttle body.
• Cooling for:

• The engine oil cooler For additional information, Refer to: ENGINE
• The engine For additional information, Refer to: ENGINE
• The Automatic Transmission Fluid (ATF) cooler. For additional information, Refer to: TRANSMISSION COOLING

The primary components of the engine cooling system are the:

• Coolant pump
• Electric thermostat
• Radiator
• Electric cooling fan
• Coolant expansion tank
• Engine oil cooler
• Outlet tube and heater manifold
• Connecting hoses and pipes.

In cold climate markets, an optional block heater is available as a Retailer/Authorized Repairer fit accessory. The block heater is located in the cylinder block and is connected to a power supply through an external plug.