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Common Causes of Car Overheating

The problem of a car overheating is dangerous, and not understanding what is happening can seriously throw you off course. Running hot engines shouldn’t be disregarded because they can disintegrate and twist the engine block, resulting in terrible damage. It’s crucial to know where to start looking when trying to figure out why a car overheats.

To accomplish this, you first stop, turn the vehicle off when it is safe to do so. Then have it towed to an auto repair shop in Toronto. You can contact us at Fine Tuned Autos.

Understanding the Cooling System

The engine temperature is controlled by the vehicle’s advanced cooling system. It also prevents the engine from overheating while running in hazardous conditions. A coolant reservoir, radiator, radiator fan, thermostat, heater hose, thermostat, water pump, and heater core are among its many parts. The coolant runs back into the engine to absorb additional heat and keep the engine at the proper temperature after it reaches the lower radiator line.

The coolant then circulates back into the engine to absorb more heat before returning to the radiator for further cooling via the thermostat and top radiator line. A car may overheat if one cooling system component malfunctions and leaves you finding a trustworthy auto mechanic near me.

Causes of Car Overheating

Failure of thermostat

The thermostat on the engine must open at a certain temperature for the coolant to flow into the radiator and cool the engine. The thermostat can become covered with muck buildup, corrosion, and other coolant system debris over time and as a result of infrequent coolant replacements, which makes it impossible for it to accurately sense the coolant temperature.

When the thermostat malfunctions mechanically and won’t open, coolant gets trapped in the engine and the engine overheats quite quickly. The coolant reservoir should always be at the “Full Cold” level. It should never cross the “Full Hot” line in order to identify a malfunctioning thermostat.

The issue with the water pump

Over time, the water pump’s impeller, bearings, and other parts may degrade, preventing the coolant from being moved along and leading to car overheating. Metallic particles in the coolant, grinding noise coming from the front of the engine, and coolant pouring from the front of the engine are all indicators of a failing water pump. Metallic debris in the coolant, a crashing noise from the front of the engine, and coolant flowing from the engine’s front are all signs of a damaged water pump.

Radiator fan malfunctioning

It is necessary for the radiator fan to move air over the coolant as it flows through the radiator to lower its temperature. Car overheating may result if the fan stops operating since the coolant’s temperature will drop somewhat as it flows through the radiator. The fan may stop working due to broken fan blades, a failing fan motor, poor wiring, or a failing fan clutch. Experts will check for radiator fan failure when looking for a nearby vehicle repair business.

Low oil level

Engine oil regulates the engine’s temperature by preventing contact. Car overheating may result from a lack of oil in the vehicle. Inward motor parts are greased with oil. It promotes smooth operation. However, if the amount is too low, heat buildup may result. If there is not enough lubrication it may lead to overheating. Our auto maintenance specialists are the first to appear when you search for the best auto mechanics near me in Toronto. We are ready to identify, explain, and fix any oil problems with your automobile.

Clogged hoses

If the engine is overheating but there is no coolant leak, the coolant hose may become clogged as a result of soil or silt from the road entering inside. This will prevent the coolant liquid from being able to circulate through the system properly, which will cause the entire cooling system to fail and the vehicle to overheat.

Additionally, a buildup that obstructs cooling system passageways and prevents the flow of engine coolant can result from corrosion and other debris in the cooling system, which can overheat the engine.


When a car overheats, the following actions are required. These include adjusting the heat and cooling systems, locating a secure location to stop, checking and topping off the coolant, starting the engine, and keeping an eye on the temperature gauge.

The automobile can be overheating if the temperature gauge is reading higher than usual or steam is flowing from underneath the hood. It’s critical to take fast action to prevent engine damage. In order to get a high-quality pre-owned vehicle at an affordable price contact us. Fine Tuned Autos offers a 210-point examination and reconditioning process, which includes examining the cooling system.

FTAutosCommon Causes of Car Overheating