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Toyota Corolla Overheating

Learn if it's a simple fix or time to seek out a trusted technician.

What are common reasons my Toyota Corolla overheats?

While there are a variety of reasons your Toyota Corolla is overheating, the most common 3 are a coolant leak (water pump, radiator, hose etc.), the radiator fan, or a failed thermostat.
41%
of the time it's
Coolant leak (water pump, radiator, hose etc.)
32%
of the time it's
Radiator Fan
17%
of the time it's
Thermostat

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Toyota Corolla Overheating Repair Symptoms

When the radiator fans stop functioning properly, the engine temperature will rise. The spike in temperature will be highest when the vehicle is idling at a stop, but should sub...Read More
A failing radiator can cause the engine to run hot or overheat. Most radiators are made of metal and plastic. The plastic parts can become brittle and crack over time, causing a...Read More
The bad thermostat can cause two different sets of problems, depending on whether it's stuck open or stuck closed. A thermostat that is stuck open can cause the engine to run c...Read More
The two most common signs of a bad pump are leaks and noises. Leaking water pumps can result in damage to the drive and timing belts, and cause the engine to overheat. A failed...Read More
If the fan motor does not work, there will not be enough air movement through the radiator to dissipate the heat in the coolant. The symptom usually associated with a faulty fan...Read More
A coolant leak may be noted from the hoses. Coolant hoses can be damaged by oil leaks, or age. This will lead to swelling or cracking, it is suggested to replace the hoses befor...Read More
Common symptoms of a coolant leak include: The engine runs hotter than normal, or overheats You see a puddle of coolant under the car, or on parts under the hood You notice...Read More