Re: Engine temp guage issue
The gauges are not accurate enough, or the sending units, to know if there's a problem without using a thermometer. You can direct a non-contact thermometer at the thermostat housing or upper radiator hose to get an idea of the coolant temperature.
With a 195F thermostat, the temperature should be near or just above that number. The thermostat should cycle to regulate coolant flow to keep the coolant near that temperature. Below, it will get poorer fuel economy, above, it can damage things.
The variable resistor that signals the temperature gauge is mounted on the drivers side of the block, above the oil filter. It will have one push-on type connector. If you ground that connector with the key ON, the gauge should go to full HOT if the gauge, wiring, and regulated voltage are good.
tom
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