Major Causes of Overheating Your Car in the Summer and What You Should Do to Prevent It

By June 24, 2023Blog

Summer brings with it the warmth and splendor of sunny days, but it also presents a challenge for your car. Overheating is a common issue that drivers face during this season. Understanding the causes and prevention methods can save you from a breakdown in the middle of a scorching day. In this article, we will explore the major causes of car overheating in the summer and how to prevent it.

Why Do Cars Overheat in the Summer?

Cars are more likely to overheat in the summer due to the increased ambient temperature. The heat can cause the cooling system to work overtime, and if it’s not in optimal condition, the engine’s temperature can rise quickly. Additionally, running the air conditioner in hot weather puts extra load on the engine, which generates more heat.

Main Causes of a Car Overheating

  1. Low Coolant Levels: The most common cause of overheating is low coolant levels. Coolant absorbs heat from the engine and dissipates it through the radiator. If the coolant level is low, it can’t perform this function effectively.
  2. Malfunctioning Thermostat: The thermostat regulates the flow of coolant. A malfunctioning thermostat can restrict coolant flow, causing the engine to overheat.
  3. Radiator Issues: A clogged or leaking radiator will not be able to cool the engine properly.
  4. Faulty Water Pump: The water pump circulates coolant through the engine. If it’s not working properly, the coolant can’t circulate, and the engine will overheat.
  5. Belt and Hose Problems: Worn belts or hoses can prevent the coolant from flowing through the system.

How to Prevent Your Car from Overheating in the Summer

  1. Regularly Check and Top Off Coolant Levels

Make sure your coolant is at the right level and in good condition. Check for any leaks in the coolant system.

  1. Monitor the Temperature Gauge

Keep an eye on your car’s temperature gauge. If it starts to rise, this could be an early warning sign of overheating.

  1. Use Your Car’s Heater

In case your car starts to overheat, turn on the heater. It draws heat away from the engine and can help bring the temperature down.

  1. Maintain the Cooling System

Have your cooling system serviced regularly. This includes checking the radiator, water pump, belts, hoses, and coolant levels.

  1. Avoid Heavy Loads

Carrying heavy loads or towing can cause your engine to work harder. Try to avoid this, especially on hot days.

  1. Seek Professional Help

If you notice any signs of overheating, it’s best to seek the help of professionals. Schedule an appointment with a trusted service center like Jap Car Care for expert maintenance and advice.

What to Do If Your Car Overheats

If your car overheats, it’s important to act quickly to prevent engine damage. Here are the steps you should take:

  1. Pull Over Safely: As soon as you notice the temperature gauge rising, pull over safely.
  2. Turn Off the Air Conditioner and Turn On the Heater: This will help to reduce the engine’s temperature.
  3. Open the Hood: This allows heat to escape. Be careful not to burn yourself.
  4. Let the Engine Cool: Don’t try to open the radiator cap while it’s hot, as this can cause injury. Once the engine is cool, check the coolant levels and look for leaks.
  5. Call for Assistance: If you’re not able to resolve the issue on your own, it’s best to call for roadside assistance or a tow truck. You can also contact a reliable service center. Jap Car Care offers excellent services for overheated vehicles.


Overheating is a serious issue, especially in the summertime. Being knowledgeable about the causes, such as low coolant levels, a malfunctioning thermostat, radiator issues, a faulty water pump, or problems with belts and hoses, can help in early detection and prevention. Regular maintenance, monitoring temperature gauges, and seeking professional help are critical to preventing your car from overheating in the summer.

Remember, your car is an investment and taking care of it not only ensures your safety but also the longevity of the vehicle. If you need professional help or advice on maintaining your car during the summer, don’t hesitate to reach out to Jap Car Care for top-notch services. Drive safe and keep your engine cool this summer!


Author amykhan0902

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