Description And Operation: 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 coolant 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
  • The throttle body.
• Cooling for:
  • The engine oil cooler
  • The Automatic Transmission Fluid (ATF) cooler.

The primary components of the engine cooling system are the:

• Coolant pump
• Thermostat
• Radiator
• Engine cooling fan
• Coolant expansion tank
• Outlet tube and heater manifold
• Connecting hoses and pipes.

In some markets, an active grille air shutter is installed to reduce aerodynamic drag and engine warm up time.