Coolant not leaking: causes and solutions
Content
In most cases, an unusual drop in the coolant level is due to a leak. However, it happens that this is another reason: a problem with a radiator, a problem with a water-oil heat exchanger, etc. change coolant, it will be necessary to find the reason for this drop in the level.
🚗 How to check the coolant level?
If you notice that the coolant level is dropping, first check the extent of the damage by checking your coolant level.
To check the coolant level, you will need to check expansion tank where is the liquid, i.e. her reservoir. The liquid level should be between the two graduations on the side of the vessel: the minimum and maximum graduations.
To avoid burns, be sure to check the coolant when it is Cold... If the level needs to be readjusted, all you have to do is pour coolant into the expansion tank.
If your car is not equipped with a coolant warning light
- Open your hood;
- Find the coolant tank using the symbol on the lid;
- Use the minimum and maximum marks on the tank to check the level.
If your car has a coolant warning light
Attention, this indicator is not infallible! Lights up when the minimum coolant level is reached. But like all electronic components, the sensor that activates it may no longer work correctly and give you poor information about the actual level of your coolant reservoir.
Therefore, do not forget to regularly check the coolant level yourself by opening the hood.
👨🔧 How to check the water pump?
Coolant falling without leaking can be a problem water pump... This is the part responsible for the return of the coolant and its re-supply to the cooling circuit. The water pump can be driven timing belt, or strap for accessories.
If the water pump is not working properly, coolant will not flow to your engine and your engine will not cool properly.
If you are not a mechanic, it will be difficult for you to determine if the problem is with the water pump. Therefore, be sure to call the garage for diagnostics.
🔍 How to check the cooling radiator?
A drop in coolant can also be caused by a damaged radiator. The liquid returns to the radiator after it has completed its cooling function. A radiator, located at the front of the vehicle behind the air intakes, cools the fluid by collecting air while driving. If the radiator is faulty, leaking, or clogged, the cooling cycle no longer works properly and the engine does not cool properly.
Required material:
- Toolbox
- Protective gloves
Step 1. Check the radiator for leaks.
If coolant can pass through the radiator, you will see a liquid spot on the floor. Therefore, first of all, do not check for spots under the car when you are parked.
Step 2. Check the machine for overheating
If your radiator is no longer working properly, your engine may overheat because it will no longer cool properly. In this case, you will have to go to the garage to check or replace the radiator.
Step 3. Check the radiator for dirt.
In this case, the coolant loses its original appearance. This could be caused by a failure of the radiator. If you notice dirt in the radiator, then it will be necessary to replace the cooling radiator.
Step 4: Check the coolant level
If you notice that the coolant level is consistently low, it could be a radiator leak. In this case, make an appointment at the garage for inspections.
🔧 How to check the water / oil heat exchanger?
Theexchange collects oil and water from your engine, being careful not to mix them thanks to its separator. If your heat exchanger fails, there will be no fluid leakage, but the heat exchanger will direct water to the oil or vice versa.
In any case, this will cause an acceleration of the coolant flow rate. You will see engine overheating or that your temperature sensor is bouncing rapidly. Replace the water / oil heat exchanger as soon as possible.
While a leak can be the cause of a low coolant level, there may be other causes, even more serious ones for your engine. To be sure of your diagnosis and get an expert opinion, we advise you to call one of our proven mechanics.
