My cooling fan doesn't turn on causing my engine to overheat when idle and I want to unplug the connector to see if it will start the fan. I just can't figure out where the ECT Sensor is exactly.
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2003 Chevrolet Cavalier Question: Where is the Engine Coolant Temperature Sensor located on a 2003 Chevy Cavalier?
Answer #1ziptie12 June 21, 2012, 11:03Master
get service manual. many models with electric fans have a 'coolant temp sensor' for the PCM (engine controls) and another one for the gauge and fan controls .check to see if the fan(s) come on with the a/c turned on , if so then that should rule out faulty fan motors. wiring diagrams and circuit descriptions would be very helpful for you.also with key off/out physically check the fan(s) for damage / free movement.