Cooling System Flow

DESCRIPTION
The cooling system consists of:
^ A cross-flow radiator
^ Thermal viscous fan drive
^ Fan shroud
^ Radiator pressure cap
^ Thermostat
^ Coolant reserve/overflow system
^ Transmission oil cooler (automatic transmission)
^ Coolant
^ Water pump with integral pulley (to circulate coolant)
^ Hoses and hose clamps

OPERATION
The cooling system regulates engine operating temperature. It allows the engine to reach normal operating temperature as quickly as possible. It also maintains normal operating temperature and prevents overheating.
The cooling system also provides a means of heating the passenger compartment and cooling the automatic transmission fluid (if equipped). The cooling system is pressurized and uses a centrifugal water pump on all engines to circulate coolant throughout the system.
An optional factory installed maximum duty cooling package is available for some engines on most models. This package will provide additional cooling capacity for vehicles used under extreme conditions such as trailer towing in high ambient temperatures.







Typical coolant flow circuits for gas powered engines are shown.