G 2500 3/4 Ton Van V8-305 5.0L VIN M SFI (1997)
Radiator Cooling Fan Temperature Sensor / Switch: Description and Operation
This switch activates a warning lamp in the instrument cluster when the engine overheats. With optional instrumentation, a temperature gage replaces the
warning lamp and the temperature switch is replaced with a transducer. For location and diagnosis. Refer to SECTION 8A-81.