4 Common Cooling System Issues that Lead to Overheating

Few things are more stressful for a driver than seeing the temperature gauge climb into the red or steam rising from under the hood. When your car overheats, it’s a sign that something in the cooling system isn’t doing its job. Ignoring the issue can lead to serious engine damage and expensive repairs. At ASAP Automotive, we provide expert cooling system repair in the greater Fremont, CA area. Here are four of the most common reasons that cars overheat.
Low Coolant Levels
Coolant is essential for keeping your engine’s temperature in check. It circulates through the engine and radiator, carrying away excess heat. When coolant levels are too low, usually because of a leak, the system can’t properly regulate temperature. Over time, hoses, gaskets, or the radiator itself can develop leaks that allow coolant to escape. If your vehicle frequently runs hot, low coolant may be the culprit.
Faulty Thermostat
The thermostat regulates the flow of coolant through the engine. When it’s working properly, it opens and closes to maintain a consistent temperature. However, if the thermostat becomes stuck in the closed position, coolant can’t circulate as it should, causing the engine to heat up rapidly. Replacing a faulty thermostat is a relatively simple repair that can prevent much more serious engine problems.
Broken Water Pump
The water pump keeps coolant moving through the engine, radiator, and hoses. If the pump fails, coolant circulation can stop, causing the engine to overheat quickly. Common signs of a failing water pump include coolant leaks and a whining noise. Replacing a bad water pump promptly is essential to prevent engine damage.
Clogged or Damaged Radiator
Your radiator’s job is to cool the hot coolant before it returns to the engine. When the radiator becomes clogged with dirt, debris, or rust, heat can’t escape efficiently. Similarly, a damaged radiator fan or broken fins can prevent proper airflow, making it harder to dissipate heat. Regular radiator flushes and cleaning can go a long way toward keeping your cooling system reliable.
Cooling System Repair in Fremont, CA
When you need
auto repair in Fremont and the surrounding area, contact ASAP Automotive at
510-327-5837. 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!











