Overheating problem. New rad and therm. No water in oil or white smoke. ???

Thanks. It is flowing. I checked the temp with my obdII and it is reading 195 to 201. I did not replace the two wire sensor, but the 1 wire sensor is new. The gauge still is pegged on Hot. Is it just a bad gauge?

Thanks. It is flowing. I checked the temp with my obdII and it is reading 195 to 201. I did not replace the two wire sensor, but the 1 wire sensor is new. The gauge still is pegged on Hot. Is it just a bad gauge?

Sensors die much more often than gauges do. Is the sensor you replaced for the gauge? If not, test it or just replace it. Is the gauge pegged on a cold motor as soon as you turn the key on or goes up as the engine warms?

The gauge goes up as the engine warms up. Within three minutes it is pegged. We replaced the one wire sensor. should I replace the two wire sensor as well? Or could the sensor that we replaced be a bad one?

I don't know which sensor is for the gauge. Was the gauge already doing this before the radiator and sensor replacement? If it started after the sensor you probably got a bad sensor or the wrong one, if it was already doing it then it's likely the other sensor is for the gauge and it's gone bad.