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Thermostat is the part which functions to maintain engine coolant temperature by restricting the flow ( open and close based on the coolant temperature ) to the heat exchanger ( radiator).
Water temperature sender ( water temperature transducer ) is the one which signals the the water temperature gauge.
so water temperature sender may not work and show the same value on the gauge.
but engine temperature will rise and vary depending on the load. the engine will be cold when you start the engine after an overnight and if you touch some safe parts of the engine you will feel the temperature rise even if the gauge does not indicate it.
hope this will help you.
thank you.
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∙ 14y ago
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You changed a water pump and thermostat on a 92 Taurus and the temp gage fluctuates high and low?
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Temp gauge will not hardly move up on your 92 ford explorer?
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What does it mean when temperature gage moves but not running hot?
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