Get hoses and belts checked periodically. For more tips and advice on car maintenance, see our guide. Get Ratings on the go and compare while you shop. Sign In. Become a Member. Remember Me. The first place to check when your car starts overheating is the temperature gauge.
Always observe the temperature gauge, to know when it moves past the optimal mark. Let's see five reasons your car temperature gauge rises suddenly. A low coolant level happens to be the most common reason a car overheats. The coolant ensures heat is removed from the engine.
Situations whereby the coolant reserve becomes empty, refilling it is the fix. Another reason can be when there's a leak in the hoses, radiator, water pump or thermostat housing, the engine will be unable to cool properly. Low coolant can cause the temperature gauge to rise. The main job of a radiator fan is to cool the internal combustion engine thereby ensuring that the right temperature is there for the engine to function effectively. When your car is overheating, check under the hood to see if the radiator fan is still working.
Again, examine your car's air conditioning unit and try putting it on. If it's not responding, then know that your radiator fan is faulty. Reasons the Temperature Gauge Reads High If the temperature gauge reads high, it could mean your engine is overheating. Reasons the Temperature Gauge Reads Cold On most vehicles, the temperature gauge reads cold until the engine has run for a few minutes.
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Excellent Auto Repair Ratings. YourMechanic Auto Repair. Related Articles. How Long Should an Engine Last? What Causes a Car to Overheat? How to Buy a Good Quality Radiator. Symptoms of a Bad or Failing Coolant Tube. Experienced Mechanic? Recent Car is overheating Inspection reviews. Excellent Rating. Rating Summary. William 34 years of experience. Request William. Kia Sedona V Williams did a great job He is very friendly and will explain everything in detail I hope to get service with him again.
If you make a purchase through any of the links, I may earn a small commission at no extra cost to you. As a driver, you may have wondered why car temperature gauge goes up and down while driving. It becomes more of a concern when the gauge goes up, yet, the car is not overheating. There are also situations when the gauge goes up while the car is idle and not being used.
All these are enough to get you worried about the health state of your car. In this article, we will explain quite a lot of things that cause the temperature gauge to rise and fall inconsistently. If the gauge rises to the red zone and your car is not overheating, it implies that something is wrong. Also, if the gauge rises when you stop the car, it also means that something is not right.
However, you should know that cars can overheat while sitting idle , and this can be due to a faulty radiator fan or other possible factors. But, basically, the paramount reason why your car temperature goes up and down while driving is due to a fault.
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