Section 13-01: Instrument Cluster, Conventional | 1996 F-150, F-250, F-350, Bronco, F-Super Duty Motorhome Chassis Workshop Manual |
The engine coolant temperature indication system is a magnetic gauge system. It consists of a magnetic engine coolant temperature gauge mounted in the instrument cluster (10849) and an engine coolant temperature sender unit.
Instrument Cluster Temperature Gauge
The temperature gauge is a magnetic gauge movement consisting of three primary coils, one of which is wound at a 90-degree angle to the other two. The coils form a magnetic field which varies in direction according to the variable resistance of the engine coolant temperature sender unit. A primary magnet, to which a shaft and pointer are attached, rotates to align to this primary field, resulting in pointer position. The bobbin/coil assembly is pressed into a metal housing that has two holes for dial mounting. There is no adjustment, calibration or maintenance required for this gauge.