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306 The temperature problem I can't understand

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05.07.2023 19:02 # 1
Oturak
Hello everyone. My vehicle is a 306 griffe 1.6 8v. Whether it's stop and go, idling, the fan turns on at 89 and off at 85. But when going uphill, it reaches 100-102 degrees. The fan system doesn't work from the Bitron brain. It works from the sensor on the radiator, and both fans turn on and off at high speed. From the radiator to the hoses, nothing has been changed. There's no water boiling, water loss, or foaming in the vehicle, no hoses inflating, but the temperature exceeds 100 degrees above 3000 rpm or when going uphill. I bought a new temperature sensor, and it reads 92-93 degrees instead of 90 degrees. Does anyone have any information?
05.07.2023 19:04 # 2
Oturak
I forgot to write. Even though the thermostat is new, when I go downhill, the temperature drops to 75-80 degrees.
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