Can low oil make the check engine light come on?
Low oil levels in a vehicle can lead to a variety of problems, and one of the most common is the activation of the check engine light. The check engine light, also known as the Malfunction Indicator Light (MIL), is designed to alert drivers to potential issues with their vehicle’s engine. While low oil levels are not the only cause of the check engine light, they can certainly contribute to it. In this article, we will explore the relationship between low oil levels and the check engine light, and what it means for your vehicle.
How Low Oil Levels Affect the Engine
The primary function of engine oil is to lubricate the moving parts of the engine, reducing friction and preventing wear. When the oil level is low, these moving parts are not properly lubricated, leading to increased friction and heat. This can cause the engine to overheat, which is a serious problem that can lead to engine damage. In addition, low oil levels can cause the engine to run rough, leading to a decrease in performance and fuel efficiency.
The Check Engine Light and Low Oil Levels
When the engine oil level is low, the engine’s computer detects an abnormality and triggers the check engine light. This is because the engine’s computer is designed to monitor various parameters, including oil pressure and temperature. If the oil pressure drops below a certain threshold, the computer will interpret this as a potential problem and turn on the check engine light.
What to Do if the Check Engine Light Comes On
If you notice that the check engine light has come on and you suspect that it may be due to low oil levels, the first step is to check the oil level. If the oil level is indeed low, you should top it off with the correct type of oil. However, if the oil level is normal, there may be another issue causing the light to come on.
In either case, it’s important to have the vehicle diagnosed by a professional mechanic. They can use a scan tool to read the engine’s computer codes and determine the exact cause of the check engine light. If the issue is related to low oil levels, the mechanic can recommend the necessary repairs to prevent further damage to the engine.
Preventing Low Oil Levels and the Check Engine Light
The best way to avoid the check engine light coming on due to low oil levels is to maintain regular oil changes and monitor your vehicle’s oil levels. By following the manufacturer’s recommended maintenance schedule and checking the oil regularly, you can ensure that your engine is properly lubricated and running smoothly.
In conclusion, while low oil levels are not the only cause of the check engine light, they can certainly contribute to it. By understanding the relationship between low oil levels and the check engine light, and taking steps to prevent low oil levels, you can help ensure the longevity and reliability of your vehicle’s engine.
