* In the intake manifold, near the thermostat housing: This is the most common location. Look for a sensor with one or two wires connected to it, screwed into the intake manifold. It's often near where the coolant enters or leaves the intake manifold.
* Sometimes on the cylinder head: Less common on this year and model, but possible.
To locate it definitively:
1. Consult a repair manual: A Haynes or Chilton repair manual specific to your 1983 Chevy CK10 with the 305 engine will show the exact location and even have a picture. This is the most reliable method.
2. Trace the wiring: Start at the temperature gauge on your dashboard. Follow the wire harness back towards the engine. The wire will lead you to the sensor.
3. Visual inspection: With the engine cool, carefully examine the intake manifold and the cylinder head near the thermostat housing. Look for a sensor that fits the description (a threaded sensor with one or two wires). Be cautious of hot coolant and other engine components.
Remember to always disconnect the negative battery cable before working on any electrical components of your vehicle.
