If you’re cruising around Rexburg and the dreaded check engine light pops on, it’s frustrating, annoying, and maybe even scary. Your car was an investment, and you don’t want it to break down! But don’t worry; the check engine light doesn’t always mean there’s an emergency. Your car is just trying to tell you something important, and it will need a little attention. Understanding what the check engine light means and what to do when it comes on can save you time, money, and unnecessary stress.
What is the Check Engine Light?
The check engine light is part of your vehicle’s onboard diagnostics system (OBD), which monitors your car’s engine and other vital car functions. When the check engine light turns on, it means that the OBD has detected a problem with the engine or emissions system. It could be a minor issue, like a loose gas cap, or a more serious issue that requires help from an engine repair shop. Let’s take a look at common reasons your check engine light might come on.
- Loose or Broken Gas Cap – A loose or cracked gas cap can cause fuel vapors to leak and trigger the light.
- Oxygen Sensor Malfunction – This oxygen sensor monitors the amount of unburned oxygen in the exhaust system. If this sensor is broken, it can reduce fuel efficiency.
- Faulty Spark Plugs or Ignition Coils – These components are responsible for the ignition, fuel combustion, and good engine performance. These are crucial for your engine to run properly, and a malfunction can lead to misfires, bad fuel economy, trouble starting the car, and potential engine damage.
- Catalytic Converter Issues – If your catalytic converter isn’t functioning properly, your car will give off higher levels of pollutants and could fail the emissions test.
- Mass Airflow Sensor Failure – This sensor measures how much air enters the engine. A malfunction can affect your engine’s performance and fuel efficiency.
- Battery or Alternator Problems – Electrical issues can sometimes cause the check engine light to turn on. These are important to get fixed as they can cause the battery to die frequently, trouble starting the car, dim lights, and other electrical issues.
What Should You Do if Your Check Engine Light Comes On
- Check the Gas Cap – Make sure it’s tightened properly. If it’s damaged, replacing it might solve the problem.
- Look for Other Symptoms – If your car making strange noises, running rough, or losing power, it can help diagnose the issue.
- Use an OBD-II Scanner – An OBD-II scanner will read what the check engine light is trying to tell you. If you don’t have access to one, a car shop will be able to check for error codes and determine the cause of the issue.
- Find an Engine Repair Shop – If the light stays on or starts flashing, it’s best to look for engine light repair near you and take your car in to get fixed.
- Don’t Ignore a Flashing Light – A flashing check engine light means that your car has a severe issue, like a misfiring engine, which can lead to a lot of damage. Stop driving immediately and get help from a professional mechanic.
Stay Ahead of Engine Trouble
The best way to avoid unexpected issues is to keep up on regular maintenance. Schedule routine inspections and oil changes, and don’t ignore minor problems. By doing the small, simple things now to take care of your car, it will be able to run smoothly and avoid needing large, expensive repairs!