Why does the temperature gauge of the Excelle fluctuate between four and five bars?
2 Answers
The temperature gauge of the Excelle fluctuating between four and five bars indicates that the coolant temperature is between 90-100 degrees Celsius. The fluctuation occurs when the cooling fan activates to dissipate heat, causing the temperature to rise and fall intermittently. The normal operating temperature for a car's coolant is around 90 degrees Celsius, meaning it is normal for the temperature gauge needle to oscillate around the middle position. Below is more information about the Excelle's temperature gauge: 1. The Buick Excelle's coolant temperature is indicated by the letters C and H. C represents 60 degrees Celsius, so the temperature gauge will only start moving when the temperature exceeds 60 degrees. H represents 120 degrees Celsius, meaning each bar corresponds to 7.5 degrees Celsius. 2. If the temperature is abnormally high, it may indicate a faulty thermostat. If you notice the temperature rising excessively during normal driving, you can open the engine hood and touch the radiator's inlet and outlet hoses to check for a temperature difference. If there is a difference, it suggests a thermostat malfunction. It could also be due to a faulty gauge or a malfunctioning coolant temperature sensor.
My Buick Excelle's temperature gauge keeps fluctuating between the fourth and fifth bars. Having driven this car for seven or eight years, I've encountered similar issues before. Such fluctuations in the temperature gauge usually indicate a problem with the temperature sensor or related circuits – it could be worn sensor contacts or dust interference causing unstable signal transmission. Additionally, if air enters the cooling system or the coolant level is insufficient, it can also cause erratic temperature readings. My case was relatively simple to resolve: I first checked the coolant level to ensure it was normal, then took it to a professional shop for diagnosis. The technician cleaned the sensor interface, and it returned to normal operation. Poor temperature control can easily lead to engine overheating, accelerated wear, and even shortened lifespan. I recommend drivers pay more attention to dashboard indicators before driving and address any abnormalities early – don't wait until the temperature spikes to start worrying.
