When your car’s temperature gauge rises or steam escapes from under the hood, it’s a clear sign that something isn’t working as it should. Overheating is not only inconvenient, but also dangerous for your vehicle, as it can cause severe engine damage if ignored. Understanding the common problems that lead to overheating can help you catch them earlier and have a better chance of avoiding major engine damage. At HESCO Automotive & Performance Center, we provide expert cooling system repair in the greater Birmingham, AL area. Here are four common reasons that cars overheat.

Failing Water Pump

Your vehicle’s water pump is at the heart of its cooling system, responsible for pushing coolant through the engine and radiator. If it fails, coolant circulation slows or stops entirely. Without proper flow, the engine cannot cool down, leading to overheating. Warning signs of a bad water pump include coolant leaks and unusual whining noises.

Low or Leaking Coolant

Coolant is essential for regulating engine temperature by absorbing and transferring heat away from the engine. If coolant levels are too low due to leaks in the radiator, hoses, or water pump, the system cannot function effectively. Without enough fluid circulating, the engine quickly overheats. Regularly checking coolant levels while the engine is cool—and addressing leaks promptly—is key to preventing this issue.

Faulty Thermostat

The thermostat controls the flow of coolant between the engine and radiator. When it works correctly, it opens and closes at the right times to maintain a safe operating temperature. If the thermostat becomes stuck closed, coolant cannot circulate, causing the engine to overheat. 

Clogged/Damaged Radiator

The radiator’s job is to release heat from the coolant before it cycles back into the engine. If the radiator is clogged with debris, corroded, or leaking, it cannot do its job effectively. A damaged radiator fan can also reduce airflow, making it harder for the system to dissipate heat. Any of these problems can lead to overheating.

Cooling System Repair in Birmingham, AL

When you need auto repair in Birmingham and the surrounding area, contact HESCO Automotive & Performance Center at (205) 526-3796. At our local auto shop, we can expertly address your vehicle’s repair and maintenance needs. Feel free to give us a call to schedule an appointment for car care in greater Birmingham, AL!

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