Take a quick look- Unusual Fluctuation in Temperature When your car’s coolant is lower it’ll show you some obvious signs which are mentioned below. This light looks like a thermometer in a bubbling liquid, and it’s usually located on the dashboard near the speedometer. To indicate that the coolant is low, you’ll see the low coolant light come on. In extreme cases, it can even cause the engine to seize up completely. This can cause serious damage to the engine, including warping of metal parts and cracking of the engine block. As a result, the engine will start to overheat. If the level of coolant gets too low, it will no longer be able to effectively keep the engine cool. This is done by a mixture of water and coolant flowing through the engine. Also, it’s important to know how much time to let engine cool before adding coolant. The engine in your car needs to be kept at a certain temperature in order for it to run properly. What Happens When The Coolant Gets Low in The Car? What Light Comes On When Coolant Is Low? Therefore, it can be difficult to know when the level is low.Īs a result, the check engine light will often come on as a warning that the coolant level is getting low. One common reason the check engine light comes on is that there is no dedicated light or gauge for coolant. If either of these systems is not functioning properly, it can cause the check engine light to come on. In addition, miscommunication can also occur if there is a problem with the oxygen sensor or exhaust gas recirculation system. Miscommunication can happen when the coolant level sensor is faulty and sends the wrong signal to the car’s computer.Īs a result, the computer thinks that the engine is overheating and triggers the check engine light. This can cause low coolant levels and trigger the check engine light. Similarly, when the temperature goes up, the cooling system needs to work more to keep the engine at a stable temperature. In extreme cold, the coolant can actually freeze, leading to serious engine damage. This can cause low coolant levels, which triggers the check engine light. When the temperature outside falls, the coolant in your engine becomes thicker and doesn’t flow as easily. They’re as follows- Rise or Fall of Temperature There are a few reasons that can be responsible for causing the check engine light to come on when the coolant gets low. Reasons Why Low Coolant Causes Check Engine Light to Come On In any case, it’s always best to take your car in for a diagnostic test to find out what’s going on. If it is, then there might be another issue causing the Check Engine light to come on. It can! If you’ve been experiencing this problem, be sure to check your coolant level and make sure it’s topped up. So, can low coolant cause check engine light? You know that if it gets too low, it can cause all sorts of problems. If you’re like most car owners, you probably check your coolant level pretty regularly.
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