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3 Essential Things to Know About Your Car’s Temperature Gauge

temperature gauge

The temperature gauge in your vehicle is designed to measure the temperature of your engine’s coolant. This gauge will tell you if your engine’s coolant is cold, normal, or overheating. It is an important dial that is located on the dashboard of your vehicle.

Reasons the Temperature Gauge Reads High

If the temperature gauge is reading high, this can mean your vehicle is overheating. Another reason your reading might be high is you could be losing coolant. A small leak or evaporation may be the cause of losing coolant. A third reason your temperature gauge is reading high could be because the thermostat is broken. If this is the case, you may need a coolant temperature switch replacement. The last reason the temperature gauge is reading high can be because of a water pump, or water pump gasket failure. If the water pump is malfunctioning, it may need to be replaced so it is best to have the vehicle looked at by a professional.

Reasons the Temperature Gauge Reads Cold

On most vehicles, the temperature gauge reads cold until the engine has been running for a few minutes. If after the vehicle is warmed up, and the temperature is still reading cold, the temperature gauge may be broken. Another reason the temperature gauge is reading low is if the thermostat in the vehicle stays open. With the thermostat stuck open, the engine can be overcooled causing a low temperature reading. If this is the case, the thermostat may need to be replaced.

What to Do If Your Temperature Gauge is High

If your temperature gauge is reading high, it means your car is overheating. This is a very serious matter and you need to shut off your air conditioner and open your windows immediately. If this does not cause the gauge to go down, turn on the heater as high as it can go. If this still is not working, pull over on the side of the road, open the hood carefully, and wait until the vehicle cools down. Never open the radiator cap as this can be dangerous. Once the vehicle is cooled, take the car to a mechanic right away so they can diagnose the problem.

The temperature gauge is an important tool on your vehicle that shows the temperature of your engine’s coolant. Contact YourMechanic and have your car inspected for overheating if it reads too high, as this can cause serious problems.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
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