| | Faulty Coolant Temp Sensor?
Lately, I've been having erratic coolant temperature readings on the gauge from time to time, where the needle would drift back and forth while the engine's working its way to full operating temp, where the engine's idling RPM becomes unsteady while this happens. In addition, the needle would less commonly jump upwards to as high as the third quarter mark all of a sudden, activating the radiator fans and then quickly falling back to the middle in less than a minute. So my question is, can a faulty coolant sensor in an LS1 erratically give higher than actual temperature readings or does the mechanism of the temp sensor's function necessarily confine it to give only lower than actual temperature readings when malfunctioning?
Can someone also tell me where the sensor's located?
Thanks very much.