When a low coolant light comes on and off and you have no clue as to what is going on, checking for leaks should be a must. However, the third reason for a leaky coolant could be a physical puncture in the radiator, which is easiest to diagnose. On the other hand, a gasket leak may lead to the exemption of coolant from the system but you may not notice it as this is a slow leak process. If you have a leaky radiator cap, the coolant gets eliminated from the overflow tube when the coolant expands due to car heat-up. Probable reasons that lead up to coolant leaksĪ coolant leak can cause your car’s efficiency to deteriorate.Best practices followed to check coolant temperature sensors.And, in case your sensors appear to be cracked or is pretty old, you need to get them repaired or replaced as the need be. The reason behind such a defective sensor would be a probable loose connection. A malfunctioned coolant sensor may lead to a diminution in fuel efficiency or it may even lead to improper emission readings. If the coolant level indicator turns on and off for no real reason this means that your car’s sensors have failed. If that is not the case, then the following reasons could help you know better. The first step towards addressing the issue starts with inspecting the coolant levels. But when the low coolant sensor turns on and off no matter what the season is, you may have several questions in mind. Low Coolant Light Comes On and Off – 4 Common ReasonsĬoolant or more aptly antifreeze is that colored liquid that prevents water from freezing in winter and from overheating in summer. A qualified mechanic can perform a pressure test to diagnose the source of the leak and determine the best course of action to repair it. If the low coolant light comes on frequently, or if the coolant level is consistently low, it may indicate a leak in the cooling system. The location of the coolant reservoir and the recommended coolant type can usually be found in the owner’s manual. When the low coolant light comes on, it is important to check the coolant level and add more coolant if necessary. If the coolant level is too low, the engine may overheat, which can cause serious damage to the engine components. Engine coolant, also known as antifreeze, is a vital fluid that helps to regulate engine temperature and prevent overheating. The low coolant light in a car typically indicates that the engine coolant level is below the recommended level. So for your convenience, we have listed out a few reasons that could be the reason behind such signal variations. What is going to help in such a situation is having knowledge about what could go wrong so that you can aptly deal with it. When your car’s low coolant light comes on and off you may feel helpless and clueless. For starters, there may be several reasons associated with it. Do you often get confused as to what that low coolant warning sign fluctuations indicate? Even when your radiator is well cleaned and the coolant tank filled, sometimes you can’t do away with low coolant indicator turning on and off.
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