If you spot water under your car just before you set off on a long drive, you may wonder whether you should postpone your trip.
If you think there is a coolant leak, it is advisable to visit your nearest garage. But if there is water under the rear of the engine compartment, it is most likely just condensation from the AC unit - and you can continue your journey as planned. In the case of a leak around the exhaust, as long as your coolant levels are good, it doesn't suggest a problem. Having a suitable breakdown cover policy in place will give you peace of mind, should you experience any issues with your car.
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If you notice water pooling inside your car during wet and rainy conditions, investigate the areas mentioned above. As we explained above, condensation and excess water leave your car through an evaporator drain. This is good. We want the water to flow out of your car through the evaporator drain. Sometimes, though, this drain can get blocked by dirt or debris. You'll want to come to Firestone Complete Auto Care. An evaporator core looks similar to a radiator—almost like a big grate.
As this material breaks down, it becomes corrosive and can cause your evaporator core to rust, allowing water to leak. If this is the problem, the evaporator will need replacing. Mold and mildew thrive in humid conditions, and can create both a foul smell and a variety of health concerns for you and your passengers. Additionally, even on a finger, it can be hard to tell the difference in color.
The most important differences to look for when determining if you have a car leaking water or coolant are the smell and the color. Coolant or antifreeze will have a smell that is sweet while water should be odorless. To tell the color, use a drop cloth, a piece of paper, or a pan. Collect some of the liquid and you should be better able to tell the color. Most colorless liquids will be water. If it is colorful, it is probably antifreeze, with common colors including blue, yellow, and green.
Keep in mind that liquid coming from your coolant system does not necessarily mean that it is coolant. It is possible if you used a combination of antifreeze and water instead of just coolant. Even then, however, you would likely leak a mixture of the two liquids, not just water. If you think the coolant system is to blame and it looks like water is leaking, then check the reservoir.
Examine the antifreeze in the radiator and confirm that it does not appear to be pure water. If it does look like just water, you should take your car to your mechanic. If you are dealing with a coolant leak instead of a water leak from the cooling system, there are a few potential causes. These can include leaky gaskets, worn bearing seals in the water pump, holes in the coolant hose, or a corroded radiator.
If the problem is a coolant leak, then the solution is as simple as getting to the source of the problem and fixing it. This typically includes replacing a worn or faulty component. Keep in mind that while most cases of water leaking in cars are not serious, the same is not always true of coolant leaks. Your car relies on the coolant to let the cooling system continue to function. Without that system functioning, your car may overheat.
As such, if you have a coolant leak, you need to check the coolant levels and watch your temperature gauge.
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