RAM 3500 Truck 4WD V10-8.0L VIN W (1997)
Thermostat: Description and Operation
LOCATION
The thermostat on all gas powered engines is located beneath the thermostat housing at the front of the intake manifold.
DESCRIPTION
The thermostat is moveable sleeve type. Thermostats very rarely stick. Do not attempt to free a thermostat with a prying device.
OPERATION
The same thermostat is used for winter and summer seasons. An engine should not be operated without a thermostat, except for servicing or
testing. Operating without a thermostat causes longer engine warm-up time, unreliable warm-up performance, increased exhaust emissions and
crankcase condensation that can result in sludge formation.
PURPOSE
The thermostat controls the operating temperature of the engine by controlling the amount of coolant flow to the radiator. The thermostat is closed
below 88°C (192°F). When the coolant reaches this temperature, the thermostat begins to open, allowing coolant flow to the radiator. This
provides quick engine warm-up and overall temperature control. The thermostat is designed to provide a minimum engine operating temperature
of 88 - 93°C (192 - 199°F). It should be fully open for maximum coolant flow during operation in hot ambient temperatures of approximately 104
°C (220°F). Above 104°C (220°F), coolant temperature is controlled by the radiator, fan and ambient temperature.
CAUTION: Do not operate an engine without a thermostat, except for servicing or testing.
