Stopped your car because of overheating? It’s sometimes common but as an owner, you have to know the reasons behind it. So, sit back and take a quick look at this guide to know the answer to why your car overheating then going back to normal.
Car overheating then going back to normal is sometimes common but how far can you drive when your car overheating then going back to normal without identifying the exact reason. You may think and relax that you’ve placed a new thermostat. But, it is not the only reason for car overheating then going back to normal.
When you notice the temperature gauge on your dashboard rise and then return back to normal after a while, it’s a sign of overheating. If you ignore it and don’t take action, over time it becomes more serious and will damage the internal parts of the engine.
Before it happens, have a look at the reasons behind the overheating issues and take the necessary steps to protect your car from overheating issues.
9 Reasons for Car Overheating then Going Back to Normal
Car overheating then going back to normal is not an issue related to a thermostat, coolant, or something. Based on your car condition and type, the following are the common reasons that can cause the engine to overheat. So, without looking for a mechanic, try to figure out the problem and keep moving
1. Thermostat trouble
One of the main causes of car overheating. The thermostat is a device placed in your car’s cooling system to control the flow of coolant. If it doesn’t work, the coolant won’t flow into the engine, which ultimately causes the car to overheat.
The signs of a bad Thermostat are leaking coolant, noise from the engine bay, unusual temperature readings, etc. In case you found any of these faulty issues with your car thermostat, remove the radiator cap and start the engine. Confirm the coolant is flowing. If it is not flowing, wait for 10 to 20 until your engine warms up. Still, there is no change at the moment, your thermostat is stuck closed.
2. Coolant level
Another reason for the car overheating then going back to normal is the coolant level. Coolant in your car is a special fluid used to keep the engine temperature at optimal levels. By leakages or not being refilled regularly, your car’s engine could overheat, the AC system will malfunction, and you’ll notice a sweet smell in your air conditioning or under the hood.
The common ways in which coolant fluid can leak are from radiator hoses, connections between hoses, the engine’s head gasket, or from the radiator itself. If you find the leak, try to block it if possible or take help from a professional.
3. Faulty radiator
You noticed above that the engine coolant travels through the radiator for cooling it too. When the temperature gauge in your car dashboard keeps running up and down, especially in the case of overheating, it may also be due to an issue with the radiator. This occurs when the fan inside the radiator does not work properly. It means that, except coolant, nothing is playing a key role in reducing the heat generated in the engine.
Therefore, first, check the fan and the parts connected to it.
4. Broken water pump
The water pump inside your car is a centrifugal pump driven by a belt connected to the engine’s crankshaft. All the time the engine is running, the water pump continuously circulates coolant from the radiator to the vehicle’s engine block, thus preventing overheating. If it is broken or fails for any reason, it causes your car overheating then going back to normal.
Generally, water pumps are made robustly and they could only fail after many years. If it is a reason for the car overheating then going back to normal, replace it instead of repairing it.
5. Low Engine Oil
Engine oil plays a key role to lubricate the parts of the engine, thus reducing the friction and minimizing the unnecessary loss of the engine. If the level of engine oil is low or appears black, this causes the engine to overheat. So, regular inspection and refilling of engine oil are mandatory to get rid of overheating problems and to keep all parts of the engine safe from damage.
6. Failed sensors
There is no need to focus much on the instant ride if the reason for overheating is due to any failed sensor. When a sensor fails, it becomes unresponsive and gives inaccurate messages and errors. So you may think that there is something big causing the engine to overheat.
However, you can’t fix it without using the tool kit. Replacing them is the only option.
7. Failed Coolant Switch
Everything assembled in the car should work properly. If at least one component fails inside the cabin, it shows leads to big problems like overheating. The coolant switch is also one that we’re talking about now. Most of the time it fails when the temperature rises uncontrollably. In this case, you can’t control the temperature. And the best solution that solves this issue is shutting down the engine.
8. Serpentine belt
Imagining a car without a Serpentine belt is like riding a car on the railway track. Because, if the Serpentine belt breaks, it incredibly becomes hard to turn the steering. It also causes the engine to overheat.
Its function is to rotate the pump to allow it to push cooling through the system. When it breaks and comes out of the alignment, the pump cannot turn and dispense the coolant.
8. Clogged heater core
A heater core is a small radiator that warms the car’s cabin using hot coolant from the engine. For any reason, it clogs, and the coolant flow will obstruct and cause overheating. And the signs it shows are foggy cars, too much coolant loss, sweet smell, etc. To unclog the heater core, locate the heater core hoses and disconnect them from the engine.
9. Head gasket failure
One of the severe issues that cause overheating. A Head gasket is a small component used to create a seal between the engine compartment and the combustion chamber. It is an important component where coolant and engine oil travel.
As a result high-pressure will be generated and thus keeping them from escaping, the head gasket acts as a seal. If it blows out, it causes severe problems.
These are the main problems causing a car overheating then going back to normal. You can’t find and fix all these problems. But, if you have an idea of what just happened to your car, you can decide whether to move forward or shut down the engine and opt for a service or inspection.
Read More: What is O/D off Mean in Car Dashboard?
Why does my car overheating then going back to normal?
Car overheating then going back to normal means you’re not taking care of it or there is a failure in some mechanism like malfunction of the radiator, thermostat, etc.
If the problem of the car overheating then going back to normal is because of small issues like low coolant level, no engine oil, etc., you can refill and keep moving. However, if you find something big after opening the bonnet, take help from a professional or shut down the engine for at least half an hour. And then reach a nearby service center.
Because these are not predictable things but regular services can solve these kinds of issues or at least they inform you if there is a need to replace the failed parts. So, it is required to focus on your car for not to have these kinds of troubles.
What is the main reason for the car overheating then going back to normal?
It’s hard to say the exact reason why the car overheating and then went back to normal. Because, the source of the issue includes a cooling system leak, faulty radiator fan, broken water pump, or clogged coolant hose, and a few others.
But, parts like Serpentine belt breaks, coolant leakages, malfunction of fan in the radiator, and Thermostat failure can be easily identified. However, the main reason for car overheating then going back to normal may be due to thermostat failure or coolant leakage.
What to do if your Car is Overheating then Going Back to Normal?
If your car is overheating and then going back to normal, try to identify the problem causing it and do a fix. Let’s see some of the possible things that you can do with a piece of basic knowledge.
1. Fix/Replace the Thermostat
The thermostat is a device placed in your car’s cooling system to control the flow of coolant. If your car is overheating then going back to normal, remove the radiator cap and start the engine. Confirm the coolant is flowing. If not, wait for 10 to 20 until your engine warms up. Still, there is no change at the moment, your thermostat is stuck closed. Then, reach a nearby service station.
2. Check Coolant Level
If Thermostat is good, another reason for the car overheating and then going back to normal is the coolant level. If there is not enough coolant, look if there are any leaks from radiator hoses, connections between hoses, the engine’s head gasket, or from the radiator itself and refill it after checking.
3. Replace the radiator
This is not your job but when the temperature gauge in your car dashboard keeps running up and down, especially in the case of overheating, there may be an issue with the radiator. To identify the problem, check the fan and the parts connected to it. If something is wrong with it, hand it over to a professional to replace it.
4. Switch on the heater
Turning on the heater transfers the heat inside your car away from the engine. No matter the season it is, if you’re on a short ride, turn on the heater to get rid of overheating issues.
5. Make sure everything is perfect
Make sure to check all the key things mentioned above are good. In case the problem is beyond your imagination, reach a nearby service station and meet a professional.
Car overheating and then going back to normal is a problem that has to be verified first instead of continuously accelerating. For long drives, it is a common issue. But, if it is happening for short rides or something you noticed wrong, do the fix if possible or shut down the engine immediately.
As a car owner, you’ve to be very clear in identifying the problem of your dream car. So that you don’t face any troubles whatever happens.
Hope you learn the reasons for car overheating then going back to normal and how to identify and fix the problems.
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