I replaced the sensor that sits near the thermostat on top of the engine. But I think this only goes to the computer. My gauge still sits on 100. There must be another sensor somewhere on this Chevy G20 5.0L that connects to the temperature gauge on the dash cluster. Is there one on the driver side engine between the spark plugs and can this be reached from underneath the Van without having to take the "doghouse" engine cover off again? Thanks for any help you all can give me here.