P0128: This code means that the coolant temperature is below the thermostat regulating temperature.Each code number means a certain problem.įor example, the codes below re related to problems with the coolant temperature: This tool grabs the information from the car’s computer and translates it into a code number. To know for sure what is the cause of check engine light illuminating, you need to use a code reader tool. These problems do not necessarily mean an issue with the coolant temperature sensor. The car’s computer uses the check engine light to indicate the internal car’s problems. As a result, the engine can get overheated very fast, which might damage it completely in a very short period. For example, say that the coolant temperature sensor said that the engine is cold, this will cause the vehicle to push more fuel to the engine, so it burns it. If the coolant temperature sensor has a problem, it will send wrong information to the car’s computer that might cause severe damages. Here is a list of common bad coolant temp sensor symptoms: Therefore, you must get it checked and regularly monitored to avoid complicated engine problems that might lead to engine failure. Similar to any car’s part, the coolant temp sensor can get damaged or go bad for a variety of reasons over time. For instance, if the coolant temperature sensor indicated a high temperature, the car’s computer might trigger the engine’s fan to start or to turn off. This system gives a signal to the computer to keep or alter how the engine is functioning. Once the coolant temperature sensor measures the temperature, it will send a signal to the on-board control system. That’s why in every engine, there is a coolant temp sensor to measure the engine’s fluid temperature and make sure it is at the right level. That been said, any engine has to have the optimum amount of coolant fluid around it, and the temperature has to be monitored continuously to avoid overheating and engine failure. To achieve this goal, a mix of fluids passes through the radiator and then around the engine to maintain its required temperature.
In any vehicle, the engine has to stay within a specific range of temperature to work properly and avoid overheating.
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