Coolant parts and purpose

regulates coolant flow through radiator to control engine temperature

• water pump

• heater core

• thermostat

regulates pressure is system and keeps radiator full of coolant

• thermostat

• radiator cap

• water pump

• radiator fan

impellers circulate coolant through engine and radiator

• water pump

• heater core

• thermostatic coupler

• oil pump

coolant flow through this and transfers engine heat to outside air

• water pump

• heater core

• coolant exchanger

• radiator

air blows through this to provide passenger heat when it is cold outside

• radiator

• air compressor

• heater core

• thermostat

draws air through grille to pull hot air away from radiator

• blower motor

• radiator fan

• thermostat

• oscillating fan

transports flow of coolant between cooling components

• pipes

• hoses

• conduit

• wires

This red dashboard light means:

• low anti-freeze

• hot oil

• engine overheating

• check radiator for leaks