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 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.

    For additional information, Refer to: Intake Air Distribution and Filtering

• Cooling for:
  • The engine oil cooler.

    For additional information, Refer to: Engine

  • The ATF (Automatic Transmission Fluid) cooler.

    For additional information, Refer to: Transmission Cooling

The primary components of the engine cooling system are the:

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