Sable V6-183 3.0L DOHC VIN S MFI (1997)
Temperature Gauge: Description and Operation
Engine Coolant Indication System
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.
