What is causing my engine to overheat?

Few issues are as alarming to drivers as seeing the temperature gauge climb into the red or noticing steam rising from under the hood. An overheating car can quickly escalate from a minor inconvenience to a major repair bill if not addressed promptly. At Murphy Family Auto Repair, we provide expert cooling system repair in the greater Mesa, AZ area. Here are four of the most common culprits behind this issue.
Radiator Problems
The radiator plays a central role in releasing heat from the coolant. If it becomes clogged with debris, or if the radiator fan fails, airflow is restricted and heat cannot dissipate effectively. A leaking radiator can also reduce coolant levels, compounding the problem. Radiator issues often lead to rapid overheating.
Faulty Thermostat
The thermostat regulates the flow of coolant between the engine and radiator. When working properly, it opens and closes to maintain the ideal operating temperature. If it gets stuck in the closed position, coolant cannot circulate, causing the engine to heat up quickly. A malfunctioning thermostat is a relatively inexpensive part to replace but can create significant overheating risks if ignored.
Low Coolant Levels
Coolant is the lifeblood of your vehicle’s cooling system, circulating through the engine and radiator to absorb and release heat. If your coolant levels are too low, your engine won’t be able to regulate its temperature properly.
Water Pump Failure
The water pump is responsible for circulating coolant throughout the engine. When it fails, coolant movement slows or stops, leading to dangerous spikes in temperature. Signs of a failing water pump can include leaks, grinding noises, or whining sounds. Because the water pump is so essential, its failure often leads to overheating in short order.
Cooling System Repair in Mesa, AZ
For expert auto repair in Mesa, AZ and the surrounding area, contact Murphy Family Auto Repair at (480) 597-8097. At our nearby auto shop, we can thoroughly address your vehicle’s repair and maintenance needs. Feel free to give us a call to schedule an appointment for car care in greater Mesa!









