FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Engine Coolant Temperature Gauge

The instrument cluster engine coolant temperature gauge has the following features:
^ It consists of three primary coils of wire called the bobbin. One coil is wound at a 90 degree angle to the other two.
^ When power is applied, correct flowing through the bobbin and sending unit forms a magnetic field which varies in strength according to the variable resistance of the engine coolant temperature sensor.
^ The bobbin/coil assembly is pressed into a metal housing which has two holes for dial mounting.
^ A permanent magnet, to which a shaft and pointer are attached, rotates to align at this primary field, resulting in pointer position.
^ The gauge pointer remains in position when the ignition switch is turned to OFF.
^ The gauge pointer moves to the correct position whenever the ignition switch is turned to RUN.
^ An instrument voltage regulator, as used on previous models, is not used.
^ The engine coolant temperature gauge is located in the lower RH portion of the instrument cluster.