If you are still wounding why is my car overheating but it has coolant in it, the coolant might be leaking or the thermostat might be faulty. A lot of things can make you car overheat of they are not working properly and all have been discussed here on cookip.
The cooling system in your car depends on various components of the cooling system to regulate the car’s engine temperature. Coolant is just one of the dependent factors that helps regulate your car.
The cooling system regulates the temperature by circulating coolant or antifreeze mixed with water through passages in the engine block and cylinder head. Now that your have known what the coolant does in your car lets answer the question why is my car overheating but it has coolant in it.
6 Reasons why your car could overheat with coolant in it
- Leaking Coolant or antifreeze
Your car cold be leaking coolant without you noticing in time. This is because there are multiple places through coolant or antifreeze can escape from your car.
Even there are no visible leaks your can still loose coolant. One very good example is when your car is loosing coolant through the cap of the radiator cover.
If the cover of your cars radiator is loose then some amount of coolant is said to be able to escape as vapor.
Another way your car can loose coolant without leaking is when you have a broken head gasket and the coolant is leaking into the combustions chamber. If coolant leaks into the combustion chamber then you will not see any visible leaking evidence as it will all burn and produce white smoke through the exhaust.
- Bad Radiator
Leaks and obstructing can prompt your radiator failing since it can’t pull the heat away from the rest of the cooling system. So, any disturbance in the radiator’s capacity can lead to overheating.
- Improper Circulation of Coolant
The coolant is supposed to move through the internal hollow structures called water jackets thereby absorbing the engine’s heat. The coolant then travels through special hoses to the radiator, where it cools down.
These continues process of coolant been circulated through the the cars makes it possible to regulate and balance the cars temperature. For any reason along the way in the cooling system, something occurs that alters the normal process then over heating can occur at anytime.
So to avoid overheating of your car, make sure all components of your car’s cooling system is working fine. If you notice any change in temperature of you cars then be quick to consult a professional for diagnosis.
- Coolant Hoses Need Replacing
The hoses through which the coolant pass through to the radiator get clogged sometimes by dirt from the radiator water. If the hoses get blocked or clogged by dirt then it will stop the normal flow of coolant.
You would not be able to see it when the hoses is been clogged with dirt but you might notice your car overheating. If you ever exercise this you should take your car to a professional for checks. This should answer your question why is my car overheating but it has coolant in it.
- A Broken Thermostat
A broken thermostat is another reason why you car could be overheating without leaking. A thermostat controls the flow of coolant through the cooling system.
To check for a broken thermostat, by observing the temperature of the upper radiator hose. If you notice any significant changed in the temperature of of the radiator then you should start checking for a broken thermostat or any other possible cause of overheating.
4 signs of a bad thermostat
- Heater or A/C won’t turn ON
- When on A/C won’t turn off
- Unstable Room temperature
- Unresponsive thermostat
- Unstable Temperature change
Erratic temperature change is another sign of a bad thermostat. If the thermostat starts misbehaving and starts giving wrong temperature reading then your car is at the risk of overheating.
Unstable temperature can lead to a poor engine performance. In this case you may see the temperature abnormally low at one point and shortly after climb to an abnormally high level.
What are the signs of a blown head gasket?
A blown gasket can be a threatening problem to a car and even the car owner. Head gasket replacements expensive going by the time consumption.
At the same time, a blown gasket puts your car at the risk of overheating. A blown gasket could also be an answer to your question why is my car overheating but it has coolant in it.
Below are some easy check you can make at home to help you determine if a blown gasket the reason why your car is overheating with coolant in it.
- White smoke coming from the tailpipe
- Unusual bubbles around the radiator cover
- Bubbles around the cover of the coolant container
- unexplained coolant loss with no leaks
- Milky white coloration in the oil
- Engine overheating
If you notice any of the above mentioned symptoms or signs in your car then you should be certain that is a blown head gasket problem. Endeavor to consult a professional for replace of the blown head gasket to avoid over heating.
Causes of Car Overheating but it has coolant in it
A car leaking antifreeze when parked is bound to overheat even when there is coolant in it. Leaking is not just the only reason a car has before it starts to overheat, there are couple of other reason why a could could get other heated.
An overheating falls might fall the danger of having a blown head gasket or even a slight lose radiator cap. The Radiator itself might be another reason why the cooling system in your cars is not working properly.
If there is a blockage on the radiator or any form dirt stopping the normal flow of coolant through the valve of the radiator then your can expect overheating.
At the same time, an over due or warn out radiator valve can cause overheating. If there is mix up of oil or oil low level in the vehicle you should expect overheating to start at anytime
If you notice your car suddenly starts to over heat please check out for any of the causes i have listed below. Among other common causes of over heating includes the causes listed below
- When There Are Leaks in the Cooling System
- When Your Water Pump Doesn’t Work Effectively
- When Paper, Dirt or Debris Block Radiator Airflow
- Bad Thermostat
- Bad Radiator
- Worn Out or Burst Hoses
- Bad Radiator Fan
- Loose or Broken Belts
- Oil Leakage into a Cooling System
- When Coolant Concentration Occurs
If by any chance you have checked your car for all of the listed cause of overheating and you could not trace any, then please visit a professional as quick as possible. After checking your car for all the common causes of overheating, by now you should have known why your car is overheating with coolant in it.