Toyota engine overheating troubleshooting tips


Posted by: Jane Osuagwu

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An overheating engine can reduce your Toyota car's optimum performance. Check out the steps to troubleshoot the overheating Toyota engine!

A Toyota engine that's running is expected to have a normal temperature that ranges from 195-220°F, and which must stay so to achieve gas efficiency and optimum performance. This is because overheating will reduce the car's fuel economy and also have a damaging effect on the engine. Components like the rods, gaskets, piston, and bearings are susceptible to overheat. Even a boiling coolant is capable of damaging the radiator and hoses. This is one of the reasons Naijauto always advises car owners not to ignore the warning signs (temperature gauge reading) on their dashboard when they show up.

Let's see an effortless way to troubleshoot an overheating Toyota engine with the following steps.

Step I

First, ensure your thermostat is operating well. Start the engine and touch the upper radiator hose to feel it’s the engine starts heating up, the thermostat will be opened to free up the heat and this will result in the radiator hose becoming warm when it's touched. If you don't feel the radiator hose getting hot, then know that your thermostat isn't in any way opening.

Step II

Examine your coolant levels. If the coolant level is low, it implies the engine doesn't have the capacity to shield itself against overheating. When filling the radiator, use the correct mixture of coolant (60%) and water (40%).

Step III

Check the radiator for any leakage, could be coolant or water. Fill up the coolant and crank the engine until it racks up to the normal temperature which it operates on. Switch on your car's air conditioner and take the car for a short drive. While driving, pull over and check out the radiator, hoses and water pump for any leak. As the engine is hot, don’t try to take off the radiator cap.

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While the engine is hot, don't take off the radiator cap

Step IV

Take a look at your radiator for any sign that might show it has corroded or blocked. If it's blocked, fix it. And if there's been severe corrosion, replace it. While at it, and consider purchasing a radiator that's stronger and durable.

Step V

Inspect all the hoses and belts. The hoses should be open and strong. Cracks, collapse spots are tell-tale signs of wearing out. The belts should also be firm with no sign of breaking.

Inspect your brakes too. A brake caliper that sticks will make the engine exert more effect just to curb the resistance.

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A brake caliper that sticks will make the engine exert more effect just to curb the resistance

Side Tips

When you overwork your car, the engine will end up getting hot. Climbing hilly areas or using your car as a towing van will strain your engine.

>>> Check our tips and advice section for more car topics!

Jane Osuagwu

Jane Osuagwu

Car prices

Jane Osuagwu is an automotive writer at She's a car enthusiast who loves creating educative and informative topics on cars, ranging from maintenance tips to updates on the latest trend in the auto industry in concise and friendly writing. 

Jane is also a blogger and loves reading, inspiring people and getting involved in personal development projects.

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