Here's what to know:
* It doesn't always mean a major problem. Sometimes it's a minor issue like a loose gas cap, while other times it could signal a serious malfunction.
* It's essential to get it checked. Ignoring the engine light can lead to further damage and costly repairs.
* A scan tool is needed. To understand the issue, a mechanic will need to use a scan tool to read the diagnostic trouble codes (DTCs) stored in your car's computer. These codes provide specific details about the problem.
Common Reasons for an Engine Light:
* Loose gas cap. This is a common, minor issue that can be easily fixed.
* Faulty oxygen sensor. This sensor monitors the air-fuel mixture and can trigger the light if it's malfunctioning.
* Clogged catalytic converter. This component helps reduce emissions, and a blockage can cause the engine light to come on.
* Spark plug issues. Faulty or worn-out spark plugs can affect engine performance and trigger the light.
* Mass airflow sensor problems. This sensor measures the amount of air entering the engine, and a malfunction can lead to engine light problems.
* Low engine coolant. A low coolant level can lead to overheating and trigger the engine light.
* Bad fuel pump. A failing fuel pump can prevent fuel from reaching the engine, causing the engine light to come on.
What to Do When the Engine Light Comes On:
1. Don't panic. The engine light doesn't necessarily mean your car is about to break down.
2. Drive carefully. Avoid aggressive driving and excessive speed to prevent further damage.
3. Get it checked as soon as possible. Take your car to a trusted mechanic or dealership to diagnose the problem and get it fixed.
4. Don't reset the engine light yourself. Resetting the light without addressing the issue can mask the problem and lead to further damage.
Remember, it's always better to be safe than sorry when it comes to your car. If the engine light comes on, don't ignore it. Get it checked out to avoid potential problems down the road.
