bigmanjbmopar
Newb with a view
Sensor = one at pump housing. the temp rises as it gets hotter and that raises the resistance in the circuit that is what you are seeing when the needle moves. testing the temp gauge is simple just pull the wire connector off your sensor at the pump housing and get a jumper wire and take it to ground or clean metal of car, the gauge will slowly peg H or all the way to the left, this is how you know the gauge and everything associated with it is good. The gauge reads the difference in resistance via the circuit board. if it does not move either the gauge is bad or the circuit board is bad / broken or the voltage limiter is bad, but if you have other gauges working then eliminate the limiter.
Testing a new sensor with a ohm meter is simply one lead on the threaded part and the other on the housing, heat the sensor end with a lighter and watch the resistance go up or down can't remember which way. if it does not change it's bad
Think of the temp gauge as just a simple ohmmeter.
Testing a new sensor with a ohm meter is simply one lead on the threaded part and the other on the housing, heat the sensor end with a lighter and watch the resistance go up or down can't remember which way. if it does not change it's bad
Think of the temp gauge as just a simple ohmmeter.
