Why is My Check Engine Light On?

Reasons Your Check Engine Light May Be On

Your vehicle is equipped with many sensors so you can catch problems ahead of time. When your check engine light comes on, you’ll likely be left with a lot of questions about your vehicle’s health. When you want to be sure that it’s running properly and that it’s ready for the road ahead, you’ll want to visit Stanley Chrysler Dodge Jeep RAM Gilmer. When you’re near Tyler, Gilmer, or Longview, our dealership is only a short drive away. 

Simple Issues

Your check engine light might give you a lot of anxiety, but it doesn’t always mean that your vehicle is breaking down on you. It could be as simple as a problem with your:

• Failing Oxygen Sensor: There are multiple sensors throughout your exhaust pipe that continually sample the air-to-fuel ratio. When it becomes damaged, you’ll want to make sure that you’re seen soon, as it can heavily impact your fuel economy. 
• Bad Mass Airflow Sensor: This sensor is slightly different, as its purpose is to strictly measure airflow so that your computer has the data it needs to help your model run smoothly. When your air filter is dirty, it can cause problems. 
• Loose or Damaged Gas Cap: This is arguably the best-case scenario, as you might need to just screw your gas cap back in. When fuel vapors are escaping your vehicle, your check engine light will usually be quick to follow. 
• Weak Battery: When there’s a problem with your battery or your alternator, your computer system might not receive the appropriate amount of power. This can give you the lovely check engine light. 

A Serious Problem

Sadly, your check engine light might be pointing to a larger issue with your vehicle. You might be dealing with:

• EGR Valve Problem: Your EGR valve, or exhaust gas recirculation valve, is responsible for reducing the emission of harmful gasses from your vehicle. Over time, it may need to be replaced if it suddenly decides to go bad. 
• Damaged Catalytic Converter: Does your vehicle smell awful when you’re driving? Catalytic Converters are a prime target for theft and are responsible for filtering some of the harmful contaminants from your exhaust fumes. 
• Bad Spark Plugs: Your spark plugs have a big responsibility, as they help your vehicle start and assist with ignition. When problems arise, it’s not uncommon for your check engine light to follow. You’ll want to get to a mechanic quickly when this is the case. 
• Vacuum Leak: There are a lot of moving parts when it comes to your vehicle’s vacuum system. When you have a problem, you might notice a drop in both power and fuel efficiency.

Your Next Service 

Since you might be dealing with one or more of the possible issues above, it’s best to bring your vehicle to Stanley Chrysler Dodge Jeep RAM Gilmer for a check-up. This will make sure that it’s truly safe to get back on the road, and you won’t have to worry about any new surprising issues. If your model is suffering from something like bad spark plugs, you’ll be glad that you brought it in early, as continuing to drive can heavily impact the health of your vehicle and may result in needing additional repairs.