Cooling System: Description and Operation

DESCRIPTION - COOLING SYSTEM 4.7L ENGINE
The cooling system consists of the following items:
^ Hydraulic cooling fan and fan drive assembly
^ Radiator
^ Power steering oil cooler
^ Radiator pressure cap
^ Thermostat
^ Coolant reserve/overflow system
^ Transmission oil cooler (if equipped with an automatic transmission)
^ Coolant
^ Water pump
^ Hoses and hose clamps

DESCRIPTION - COOLING SYSTEM ROUTING 4.7L ENGINE

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OPERATION-COOLING SYSTEM
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 to circulate coolant throughout the system.

OPERATION-HOSE CLAMPS
The worm type hose clamp uses a specified torque value to maintain proper tension on a hose connection.
The spring type hose clamp applies constant tension on a hose connection. To remove a spring type hose clamp, only use constant tension clamp pliers designed to compress the hose clamp.