Q: Suzuki Alto SB-308, model 1993. Thermostat Valve behaviour
I recently installed thermostat valve part number 17600-85811 rated 82C. I noticed valve opening when temp gauge reaches 10% and fan comes on at 40% on its way from C to H. Issue is that, while continuous driving at highway speeds the temperature gauge again comes back to 10% and stays around there until speed is slowed down or stopped then it starts rises up to 45% and again fan comes on. If I continue to drive at high speed the fan never comes on and needle remain near to C while in optimum situation it should show almost constant temperature near to half way to H.
My car has a manual transmission.
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