1. Coolant Temperature Sensor (CTS): Located in the intake manifold, usually on the passenger side. This sensor is crucial for the engine's computer (EEC-IV) to control fuel mixture and other engine functions based on engine temperature.
2. Cylinder Head Temperature Sensor (optional): Some 5.0L engines from that era *might* have had a cylinder head temperature sensor, but it wasn't standard on all. Its location, if present, would be on one of the cylinder heads.
It's important to note that there might be other temperature-related *switches* (not sensors) like the ones that trigger the cooling fan, but these are simple on/off switches, not providing a continuous temperature reading to the computer.
To be absolutely certain, you should consult a wiring diagram or a repair manual specific to your 1992 Ford E150 with the 5.0L engine. These diagrams will show the exact location and type of each sensor.
