4 Common Issues that Cause Cars to Overheat

Few car issues are as stressful as seeing your temperature gauge climb into the danger zone or spotting steam pouring out from under the hood. An overheating engine can cause severe damage if ignored, and the problem can escalate quickly. Understanding the most common reasons cars overheat can help you stay on top of maintenance and address issues before they lead to costlier repairs. At Novato Auto Service, we provide expert cooling system repair in the greater Novato, CA area. Here are four common causes of overheating.
Cooling System Leaks
Leaks are among the most common culprits of overheating. A cracked radiator, worn hose, or faulty water pump are issues that can allow coolant to escape, leaving your system unable to maintain proper fluid levels. Even small leaks can cause big problems over time. If you notice puddles of coolant under your car, it’s a strong indication of a leak that needs immediate repair.
Malfunctioning Thermostat
The thermostat regulates how coolant flows through your engine. When it works correctly, it ensures the engine warms up efficiently and then maintains an optimal operating temperature. But if the thermostat becomes stuck closed, coolant won’t circulate properly, leading to overheating. A faulty thermostat is a relatively inexpensive fix that can save your engine from major damage.
Broken Water Pump
The water pump circulates coolant throughout the engine and radiator. If it fails, coolant won’t move efficiently, and overheating can quickly result. Because the water pump is crucial for proper cooling, any signs of failure such as leaks, whining noises, or engine temperature spikes should be addressed immediately.
Blocked Radiator
Your radiator is designed to dissipate heat, but if it becomes clogged with debris, rust, or sediment buildup, it can’t do its job effectively. Without efficient heat exchange, your engine temperature can rise rapidly, leading to overheating. Regular inspections and flushing the cooling system at recommended intervals help keep your radiator in good condition.
Cooling System Repair in Novato, CA
For expert
auto repair in Novato and the surrounding area, contact Novato Auto Service at
415-598-1488. Feel free to give us a call to make an appointment!




