What do C and H on the temperature gauge represent?
1 Answers
In the car dashboard, C is the abbreviation of COOL in English, meaning cold, while H is the abbreviation of HOT, meaning hot. C and H are used to display the car's water temperature, known as the temperature gauge on the dashboard, indicating the temperature of the coolant inside the car's engine. The temperature of the car engine coolant should be maintained within the normal range. The red H on the temperature gauge indicates that the water temperature is too high, the blue C indicates that the water temperature is too low, and no light on the temperature gauge means the water temperature is normal. When the car's engine is working, fuel combustion generates a large amount of heat. Some of the heat is expelled outside the car through the exhaust pipe, while some remains inside the car's engine. Excessive heat can cause the engine temperature to rise too high, leading to engine expansion and damage. Therefore, coolant is needed to maintain the normal temperature of the engine. Hazards of excessively high car water temperature: Damage to the vehicle's cooling system fan, damage to the engine thermostat, damage to the engine cylinder gasket; premature deterioration of engine oil, resulting in loss of lubrication. When the vehicle's water temperature is too high, the vehicle should be turned off, and the antifreeze usage should be checked. Excessively high water temperature in motor vehicles can cause malfunctions, and in severe cases, render the vehicle unusable. While driving, if the driver notices the vehicle's water temperature gradually rising too high, the vehicle should be stopped immediately, and the engine cooling system should be inspected. After identifying the problem, appropriate repairs should be made, and the vehicle should only continue driving after ensuring there are no issues. Effects of excessively low car water temperature: Increased fuel consumption. Excessively low car water temperature can lead to poor gasoline atomization, incomplete combustion, reduced power, increased fuel consumption, and more carbon deposits. Impact on engine performance: The normal operating temperature of a car engine is generally around 90 degrees. Excessively low water temperature can affect engine performance. First, there is the issue of the clearance between moving parts. Low water temperature means less expansion of parts, leading to excessive clearance and reduced power. The temperature of the engine oil also decreases, increasing its viscosity, which raises the engine's operating resistance and affects power output.
