Check engine light: When to head to the auto repair shop

November 19, 2018

LEARN MORE ABOUT THE MOST COMMON POSSIBLE REASONS WHY YOUR CHECK ENGINE LIGHT POPS ON.

There’s nothing more unnerving than your check engine light coming up as you’re driving. The light might get activated without any other warning sign, and it might be hard to immediately understand what it is trying to tell you. If you are like most people, you probably aren’t too keen on taking the risk of driving around with a problem affecting your vehicle. In most cases, a trip to the auto repair shop will certainly be the best course of action in order to prevent issues and fix any possible problem.


The check engine light can be confusing and somewhat frustrating for many people. The light comes with no other attached information, and it could represent a host of different issues. This is why it isn’t immediately easy to tell what the problem is.


OXYGEN SENSOR ISSUES

Cars have an oxygen sensor, which is an essential component. It allows the vehicle to essentially monitor the unburned oxygen from the exhaust. This is an important tool get a better idea of how much fuel is being consumed by the car. In case of issues with the oxygen sensor, the car won’t be able to tell you exactly how much fuel you are using, and it might display incorrect information. The sensor might malfunction over time, because it can become worn out. In particular, oil ash can affect it and reduce the sensor’s accuracy and ability to detect properly. A faulty sensor will have direct consequences, such as increasing emissions, as well as reducing gas mileage. If you find that you have a faulty oxygen sensor, you should consider replacing it as soon as possible. This particular issue can lead to even greater (and far more expensive) problems, if left unchecked! This is one of the most common causes of a check engine light going off!


GAS CAP ISSUES

You would think of a gas cap as a simple, and fairly unimportant, accessory in your car. However, it can be a source of concern when it is loose or cracked. Fuel can produce vapors, which can leak and cause the whole fuel system to misfire, significantly increasing your emissions and reducing your gas mileage. Issues to your gas cap should be fairly easy to diagnose on your own. If you are experiencing that your cap is cracked, worn out or loose, you might be able to immediately trace it back as the cause of your check engine light going off. You could start with simple fixes on your own. An action as simple as stopping the car and trying to tighten the cap might do the trick. However, it might be a bit more problematic if you do experience any crack. The good news? The solution is usually as inexpensive as it gets. Buying a new gas cap might set you back by only a few dollars, depending on your car. This is generally a quick and inexpensive fix, which might solve the engine light issue, and it might definitely be worth a try, considering how affordable it is to buy a new gas cap!


CATALYTIC CONVERTER

As you might know, the catalytic converter (also referred to as catalytic convertor) is one of the most important components of your car. It is needed to reduce exhaust gases and it coverts potentially toxic emissions of carbon monoxide into other compounds that aren’t as dangerous. When you have issues with your catalytic convertor, you might notice that your car won’t go as fast, even when stomping on the gas. You might also experience a decrease in gas mileage and an increase in terms of emissions. Given the importance of the catalytic converter, is often recommended to undertake regular maintenance. This isn’t a really common cause of concern for people who regularly take care of their cars and get them inspected regularly, but if you have been neglecting your vehicle a bit, catalytic converter failure could be the issue, and it might worth getting your car looked at. Replacing your catalytic converter might be quite expensive, so the best solution is definitely to get your car maintained and checked out regularly, in order to avoid issues.


AIRFLOW SENSOR ISSUES

The airflow sensor is a tool that essentially tells the car’s computer how much fuel to use, based on the amount of air that’s coming through the engine. As you can imagine, airflow sensors that don’t work properly can lead to more emissions and other issues, warranting a check engine light on.


This article explores some of the most common causes of a check engine light. In most cases, the fix could be quite easy and there is nothing to really worry about. However, it is better to avoid taking chances when it comes to road safety. In most cases, a simple check-up can solve the issue quickly and effectively, without the need for costly repairs. Elite Auto Experts can assist you with quality and timely check-engine light diagnostics and auto repair services to give you peace of mind.

5 Issues That Cause Your Car Vibrating at Idle | Elite Auto Experts
April 25, 2025
Elite Auto Experts in Houston, TX, explains five possible reasons your car vibrates when idling and how to address each one.
April 23, 2025
Your car’s transmission is one of its most vital components. It’s responsible for transferring power from the engine to the wheels, controlling how fast those wheels spin, and ensuring each gear change is as smooth as possible. Despite its importance, many drivers overlook transmission maintenance—until there’s a significant (and expensive) problem. Let’s dive into the basics of how your transmission works and why routine care is key.
April 7, 2025
Why Choosing a Professional Collision Center Is Crucial: Saving Money, Ensuring Safety, and Gaining Peace of Mind
April 2, 2025
Car Care Month is the perfect opportunity to give your vehicle the extra attention it deserves, ensuring you avoid unexpected breakdowns and keep your car running efficiently. A little proactive care goes a long way toward enhancing safety, preventing costly repairs, and extending the lifespan of your vehicle. Below are several key areas to focus on during this special month dedicated to automotive maintenance.
Is It Safe to Drive with a Damaged Oil Pan? | Elite Auto Experts
March 28, 2025
Elite Auto Experts in Houston, TX, explains whether it’s safe to drive with a damaged oil pan. Learn the risks and when to seek professional auto repair.
March 24, 2025
Managing a fleet of vehicles is no small task. Whether it’s delivery trucks, service vans, or corporate vehicles, ensuring your fleet is well-maintained is essential to keeping your business running smoothly and efficiently. Regular fleet maintenance isn’t just a good practice—it’s a necessity for safety, cost-effectiveness, and overall productivity. Let’s dive into why maintaining your fleet should be a top priority.
March 15, 2025
Houston summers can be brutal, and the last thing you want is to be stuck in traffic with an A/C that’s not blowing cold air. If your car’s air conditioning isn’t working properly, every drive can feel like a sauna on wheels. That’s why Elite Auto Experts is offering a FREE A/C Check —because staying cool on the road isn’t just about comfort, it’s about safety too!
A man in a blue shirt is sitting in a car using a tablet. | Elite Auto Experts
March 5, 2025
Don’t Ignore That Warning Light! How Our Free Engine Light Scan Saves You Time & Money.
How Can I Tell If My Car’s Alternator Is Failing? | Elite Auto Experts
February 28, 2025
Elite Auto Experts in Houston, TX, explains how to spot a failing alternator. Learn common signs of alternator trouble and when to get your car checked.
Technician working on a car | Elite Auto Experts
February 25, 2025
One of the best ways to save money on auto repairs—and to keep yourself safer on the road—is to learn how to recognize your car’s “red flags” before they turn into major problems. While some issues are obvious, like an engine that won’t start at all, many are more subtle and can be easy to miss if you’re not paying attention. By spotting these warning signs early, you can schedule necessary repairs or maintenance right away, avoiding costly breakdowns, dangerous driving conditions, and bigger headaches down the line.
More Posts