Check Engine Light On? Get Reliable Service in Apex & Cary
If you’ve spent the day at the Halle Cultural Arts Center and are getting ready to go downtown to get something to eat but get in your car only to find the check engine light is on, it can really ruin your day in a hurry. Every driver dreads seeing that light, but we can help make it a little less scary.
At Peak Auto, we never want your vehicle to be what keeps you from getting to enjoy this great town. Our technicians can hook up diagnostic tools and figure out why that light is shining bright on your dashboard.

We Service the Following Brands
Peak Auto provides a full range of maintenance and services for the following brands:
European Vehicles
Check Engine Light
The Check Engine Light (CEL), also known as the Malfunction Indicator Light (MIL), is a warning that something might be wrong with your vehicle’s engine or emission control system. It can indicate a wide range of issues, from a minor problem to a more serious engine malfunction. To get a quick answer as to why that light is glowing, you can have a technician hook your vehicle up to a diagnostic tool that will read the codes in your vehicle to give you an answer as to what is going on.
Reasons Your Check Engine Light Is On
The Check Engine Light can be triggered by something as minor as a dirty sensor, but it could also point to a serious mechanical problem. Here are some common reasons why your check engine light might be on:
- Loose or Faulty Gas Cap: A loose or damaged gas cap is one of the most common reasons for the check engine light to come on. It can cause a fuel system leak, affecting pressure and emissions. You may have been at the gas station and just forgotten to tighten the cap down, so if you just hop out and make sure the cap is on tight, it may fix the problem.
- Oxygen Sensor Failure: The oxygen sensor measures the amount of oxygen in the exhaust and helps regulate the engine’s fuel efficiency and emissions. A malfunctioning oxygen sensor can have you using much more gas and have you filling up way more than you want to be.
- Mass Airflow Sensor Issues: The mass airflow sensor measures the amount of air entering the engine and adjusts the fuel injection to maintain optimal engine performance. A malfunctioning mass airflow sensor can have your engine not working the way it needs to, and your gas bill can be much higher.
- Transmission Problems: Transmission issues, such as low fluid levels or a malfunctioning solenoid, can also cause the check engine light to appear. This often indicates that there is a problem with the vehicle’s transmission that requires attention.
- Low or Contaminated Brake Fluid: A low brake fluid level, or fluid that is contaminated, can trigger the check engine light as well. You may also notice a spongy brake pedal or decreased braking performance.
Common FAQs About The Check Engine Light
Is it okay to drive with the Check Engine Light on?
- Solid Check Engine Light: This typically indicates a less urgent issue. While it’s okay to drive short distances, you should have your vehicle inspected soon.
- Flashing Check Engine Light: A flashing light indicates a serious problem, like an engine misfire. It’s important to stop driving immediately and get your car towed to a repair shop to prevent further damage.
Will the Check Engine Light turn off on its own?
What should I do if the Check Engine Light comes on while driving?
How do I reset the Check Engine Light?
At Peak Auto, we take giving you the best customer experience for your vehicle repair needs seriously. We can be found at:
- 833 US-64W, Apex, NC
When your check engine light is on, don’t hesitate to give us a call to get that taken care of!