What Are The Most Common Causes Of Coolant Leaks?
What Are The Most Common Causes Of Coolant Leaks?
Coolant leaks can be dangerous for your car’s engine because it needs a certain amount of antifreeze to run correctly. Without it, the machine could overheat or freeze in cold weather. Because coolant plays an essential role in how well your engine runs, you should regularly check your coolant levels. It is especially true for older cars that might not operate as efficiently as newer models. Seeing visible fluid on the garage floor (or wherever you park your car) could signify a coolant leak. Since coolant is not the only fluid that can leak from an engine, you must know how to find a coolant leak and identify the type of fluid that has leaked.
Coolant is typically bright green, orange, or pink in colour and might have a sweet smell. If you notice a coolant leak, immediately clean it up to prevent damage to the surrounding area and people and pets nearby. Another way you can see a coolant leak is by watching the temperature gauge.
To determine if your engine has a coolant leak, check the coolant level in the expansion tank and refill it if necessary. Monitor the status regularly to find out whether it is losing fluid. Once you’re aware that the leak is coolant, you are required to begin pinpointing where it came from by considering the five most common coolant leak causes. It will help if you look for a professional commercial vehicle mechanic with considerable automobile experience.
5 Common causes for coolant leaks
If you suspect your vehicle is experiencing a coolant leak, one way to test for it is to check the ground underneath the engine for puddles when you park. If you notice a puddle forming, keep an eye on your coolant levels as you drive. Let’s find out!
1. Corrosion in the radiator
Cars are complex machines, and many parts that make them up must endure a lot of wear and extreme temperatures. As a result, they can become susceptible to leaks. One common type of leak is caused by corrosion within the radiator, usually due to sediment or debris getting inside. Another common type of leak occurs when the sealing gasket between the tank and the radiator weakens and wears out; this could cause a leak. The hoses connected to the radiator can be at fault. In cases like these, they become hard and brittle as they age, which means they won’t seal.
2. Leaky radiator cap
A leaking radiator cap can be one of the significant coolant leak causes. It is generally caused due to overheating, which can lead to expensive repairs. The radiator cap creates a seal that ensures coolant is not lost as pressure drops, but if the seal fails, coolant can be lost. A leaky cap also triggers your car’s warning system, and flashing lights will appear until the problem is resolved. Replacing a faulty cap with a new one ensures that you can continue to drive with peace of mind knowing that your car’s cooling system continues to operate efficiently and safely.
3. Failed water pump
The water pump is primarily a component of the engine cooling system. It’s located on the lower part of the engine block and is driven by a belt. The water pump pulls coolant from the car’s radiator through one side, where heat exchange occurs, and then pushes the coolant into the other side. It provides constant circulation throughout the engine’s internal universe to keep it at an average temperature. If this internal circulation stops due to some damage to your water pump or that causes engine malfunction and overheating.
4. Blown head gasket
A car’s head gasket is crucial in how efficiently the engine operates. When a head gasket leaks, you might not notice it for some time. You could drive for a couple of miles before seeing signs of a problem. The head gasket comprises an aluminium or copper core that sits between the engine block and the cylinder head and a steel shell that covers the centre. When it develops a leak, it’s referred to as “blown.” When this happens, fluid can mix and cause severe damage to your engine.
5. Faulty expansion tank
When the coolant in your car leaks, it indicates a problem with the radiator and expansion tank, which are vital for retaining heat. In older cars, these parts are made of plastic and can crack with time; in newer cars, the lines connecting these parts to the engine may degrade and leak. If your fluid is red or pink, your vehicle needs to be serviced; it could be that air has been mixed in with the coolant from a loose hose connection or a crack in an expansion tank.
What happens if you don’t get your coolant leak fixed?
A car’s cooling system is a vital part of the vehicle, without which the engine would overheat in a matter of minutes, causing irreparable damage. Any slight leak in the cooling system can quickly turn into a significant leak, which will cause the car to overheat. If you notice your temperature gauge moving above the safe temperature, stop your vehicle immediately and call roadside service because it is no longer safe to drive. The presence of white smoke from the exhaust pipe is another severe symptom of a coolant leak. White smoke usually indicates that the coolant has reached the cylinders.
Conclusion
You can avoid leaks by understanding these common coolant leak causes and following a regular preventative maintenance schedule that includes changing the coolant in your radiator. If old coolant turns sour and becomes acidic, it can eat away at the aluminium in your radiator. Regular maintenance can detect loose and deteriorating hoses or other problems leading to a leaking radiator. If you notice leaking coolant, take your car to a professional who can locate and fix the problem. It will help if you look for a professional commercial vehicle mechanic with considerable automobile experience and expertise to provide you with a reliable Mercedes Benz service Dandenong.
Featured photo by Daryl Johnson by Pexels
