my truck recently overheated like crazy... after gettin her home and inspecting the damage... i noticed an electrical socket with the connecting end of a sensor that had been burnt off... after looking in the area the wire runs too... i unscrewed what looks exactly like a coolant temp sensor, only thing is is that it was mounted on the block... and not the manifold like ECTS's usually are... and after reading the manual i found the ACTUAL temp sensor in the manifold right where it says it should be/// now i dont know wtf this sensor is... def not oil pressure, or knock either!!!!!

its a 94 W motor 4.3 and the sensor is in between the first and second spark plugs on the passenger side of the motor



HELP!!!!

There are two coolant temperature sensors, one for the computer and one on the other side for the dash temp gauge.

As BlazerLT said there are 2 coolant sensors.
One pcm and one dash gauges/light.
The one between the spark plugs is for the dash gauges/light.