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A check engine light may be serious, so it’s important to inspect your vehicle as soon as possible. While this warning indicator can arise from simple fixes like inflating the tires or tightening the gas cap, it is best to err on the side of caution and promptly find the cause of the problem.
The check engine light in your car is vital to help uncover problems. But there’s a lot more to understand than just a dashboard warning. This detailed article reviews the most common causes for a check engine light coming on, how to identify troubles, and what the repairs will cost you.
In this guide, we will delve into the world of the Check Engine Light, its significance, the common reasons behind its activation, how to interpret Check Engine Light codes, and the steps to diagnose and address the underlying issues.
The check engine light provides an idea — sometimes precise, sometimes vague — of what’s wrong with a car. However, it does not replace a skilled mechanic or routine maintenance.
1. Loose or Faulty Gas Cap. One of the simplest and most overlooked causes for the check engine light is a loose or faulty gas cap. Your vehicle’s gas cap seals the fuel system and helps maintain the proper pressure within the tank. If the cap is loose, damaged, or missing, it can cause a fuel vapor leak, which triggers the light.
Kidding aside, there are 97,351 reasons that a check engine light can come on. Try and catch your breath. We will list the top reasons why a check engine light has spoiled your mood and offer insight into how you and your mechanic can resolve the issue.
The most basic explanation for what causes a Check Engine light is that a sensor communicating with the engine control module detects behavior that indicates a component failure or readings outside of its normal or acceptable range.