![]() Blowing the head gasketĪ very common and not so funny thing that can happen when your engine is overheating due to low engine coolant is a blown head gasket. Overheating Engineīecause of the airlocks in the coolant system we talked about before, the water pump will not pump around the coolant to hold the engine at a good temperature, and it will cause the engine to overheat.Īn overheating engine can cause many expensive issues with your engine, which we discuss in the next sections. The first thing that could happen if you drive around with low coolant is that the water pump will pump air into the coolant system, which will cause airlocks in the coolant system.Īirlocks will cause the cooling system’s flow to get disturbed, which will cause an overheating engine, which we will talk more about in the next section. Here is a more detailed list of what can happen if you ignore & drive around with a low engine coolant level: 1. An overheating engine can lead to a blown head gasket or a damaged engine block. The most common consequence of driving with a low engine coolant is air in the cooling system, resulting in an overheating engine. Faulty EGR cooler Consequences of Driving With Low Engine Coolant Level You will find more possible symptoms further down in the article, but first, let’s take a look at the consequences of driving with a low engine coolant level.ĥ. Just topping up the coolant level should never be a long-term solution. ![]() The leaks can come from leaking hoses, sensors, or gaskets. The most common reason for a low engine coolant level is almost always due to leaks in the cooling system. Unfortunately, cars are not always known for being problem-free, and therefore problems can occur that cause the coolant level to drop.īut is it safe to drive with a low engine coolant level, what causes it, and how to recognize it without opening the hood? Let’s find out! But first, let’s take a look at the reasons why your coolant level is low: The coolant system in a car is a sealed system that means that the coolant level should stay even if everything works as it should. Therefore it is important to control this heat by using a cooling system. If you don’t feel confident doing this, or don’t have the time, drop in to a Halfords for a free car safety check where our trained technicians will check over your vehicle for free.The engine internal combustion unit produces a lot of heat – at times, temperatures hit well over 200 degrees. Our range of antifreezes is part of our massive selection of engine oils and fluids oil levels and essentials like screenwash too. Whatever you choose, you can buy with confidence from Halfords. ![]() Alternatively, it can be waiting for you at your local Halfords store by using our Click and Collect service. If you need it in a hurry, you can have your maintenance package delivered to you for free if you spend over £40. You can shop our entire range of antifreezes and motoring products online. Engine coolant provides essential protection, so driving while levels are low isn’t recommended. You can choose from one of our own range of Halfords’ antifreeze that has been helping drivers for decades or a branded version from leading manufacturer Comma. If you don’t know which antifreeze is best for your car, our tool can help you narrow down your search. Naturally, you can find both types at Halfords. It’s why the liquid in your radiator doesn’t freeze when everything else seems to be! You can choose a concentrated coolant that needs to be mixed with water or a ready-mixed one that can be used immediately. Antifreeze is added to the water in your engine’s cooling system that lowers its freezing point (and raises its boiling point too). If you don’t know how antifreeze works ,it’s pretty simple. Antifreeze is the hidden hero of our car’s engines.
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