* On the intake manifold: This is the most frequent location. Look for a sensor screwed into the intake manifold, often near the thermostat housing. It's usually a single-wire or two-wire sensor.
* On the cylinder head: Less common, but possible, especially on some later model years. It would be on the cylinder head itself, again often near the thermostat housing.
To find it definitively:
1. Consult your vehicle's repair manual: This is the best source of information. The manual will have diagrams showing the exact location of all sensors.
2. Use a wiring diagram: A wiring diagram for your specific year and model S-10 will show the sensor's location by tracing the ECT sensor wire.
3. Visual Inspection (with caution): Once the engine is cool, carefully inspect the area around the thermostat housing and the intake manifold. Look for a sensor that has one or two wires connected to it and is screwed into the engine block or intake manifold. Be mindful of hot surfaces even after the engine has cooled.
Remember to always disconnect the negative battery terminal before working on any electrical components.
