Spirit L6-258 4.2L VIN C 2-bbl (1982)
Coolant Temperature Sensor/Switch (For Computer): Description and Operation
PURPOSE
The coolant temperature switch is a dual function unit that is controlled by engine coolant temperature and is integral with the intake manifold
(EFE) heater control switch. When closed, the switch indicates that the engine is cold (coolant temperature below 135°F).