F 350 2WD Pickup V8-460 7.5L VIN G EFI (1997)
Oil Cooler: Description and Operation
The oil cooler is mounted either to the cylinder block or under the oil filter adapter.
Engine on enters the cooler. The cooler, being made up of multiple tubes submersed in engine coolant, allows the oil to disperse heat into the coolant.
The coolant then flows to the radiator where it is then cooled.
Heater water hose and heater core. The heater or climate control system uses engine heat to heat the passenger compartment of the vehicle. On vehicles
with standard heaters, coolant circulates through the heater core whenever the engine is running. Heater output is controlled by air door function. On
vehicles with air conditioning systems, a valve controlled by the A/C system may control coolant flow to the heater core.
Coolant flows from the radiator through the lower radiator hose to the engine-driven water pump. This pump forces the coolant through the engine oil
cooler (if so equipped), engine block and cylinder head passageways. If the thermostat is closed, coolant returns to the water pump through the bypass
hose or a bypass passageway in the engine. If the thermostat is open, the coolant passes back into the radiator where air passing over the radiator tubes
removes the excess heat.
