What is the gauge next to the fuel gauge in a car?
2 Answers
The gauge displaying C and H next to the fuel gauge is the coolant temperature gauge. Structure of the coolant temperature gauge: Its sensor is a thermistor-type sensor, fixed with threads on the engine cooling water passage. The thermistor determines the current flowing through the coil winding of the temperature gauge, thereby driving the pointer to swing. Introduction to the coolant temperature gauge: The coolant temperature gauge displays the temperature of the cooling water, measured in ℃ (Celsius). In the past, tap water was used as the cooling water for car engines, but now many car engine cooling systems use specialized coolant, hence it is also called the coolant temperature gauge. Some coolant temperature gauges use indicator lights; when the coolant temperature light is on, it indicates that the temperature is too high.
As a frequent driver, I know the gauge next to the fuel gauge is mostly the water temperature gauge, used to monitor the engine coolant temperature. During long trips, I pay special attention to this little guy—the needle should usually stay in the middle zone. If it's too high, a red warning light will indicate overheating danger, possibly due to a non-functioning fan or a clogged radiator. If it's too low, the thermostat might be faulty, increasing fuel consumption. I’ve found that regular maintenance is crucial; checking coolant levels and cleaning the cooling system periodically can prevent major repairs. This is especially critical during hot summers, where timely handling of overheating prevents breakdowns. Understanding the water temperature gauge makes driving more reassuring—it may be small, but it safeguards engine health. I suggest fellow drivers develop the habit of monitoring it and not wait until problems escalate.
