Sable V6-183 3.0L VIN U FI (1998)
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Temperature Gauge: Description and Operation
The engine coolant temperature indication system is a magnetic-type indication system consisting of:
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the water temperature indicator sender unit located in the engine block or cylinder head
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an Engine Coolant Temperature Gauge in the instrument cluster
The water temperature indicator sender unit operates as follows:
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changes resistance according to engine coolant temperature, which varies the current flow through the engine coolant temperature gauge.
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the pointer position varies proportionally to the current flow.
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resistance is high when the engine coolant temperature is low, and low when the engine coolant temperature is high.
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the pointer of the magnetic engine coolant temperature gauge remains in position when ignition switch is turned to OFF.
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pointer will move to the correct indication whenever the ignition switch is turned back to RUN.
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pointer may indicate at the top of the normal band with the engine coolant temperature within specification, under certain driving conditions such
as heavy traffic or stop-and-go driving in hot weather.
ENGINE COOLANT TEMPERATURE GAUGE
The Engine Coolant Temperature Gauge is identified by a thermometer symbol:
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"H" means high temperature
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"C" means low temperature
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the solid band between C and H is the normal temperature range