Check Engine Light

Expert Check Engine Light Diagnostics and Repairs

free check engine light diagnosis

Don’t panic when your check engine light comes on! Get a FREE diagnosis at AAMCO Chicagoland, helping you find the codes for why the light is on so we can help you find a solution.

Understanding Your Check Engine Light: Expert Diagnostics and Repairs at AAMCO Chicagoland

Is your check engine light (CEL) illuminated on your dashboard? Don’t panic! While it’s never pleasant to see that little orange or yellow light glowing, it’s essential to understand that it’s your vehicle’s way of communicating that something isn’t quite right. At AAMCO Chicagoland, our team of expert technicians is here to help diagnose the issue and get you back on the road with confidence.

Why Does the Check Engine Light Come On?

The check engine light can illuminate for a variety of reasons, ranging from minor issues to more serious problems. Some common reasons why your check engine light might come on include:

  1. Loose Gas Cap: Believe it or not, something as simple as a loose or damaged gas cap can trigger the check engine light. This is one of the most common reasons for a CEL, and it’s an easy fix.

  2. Oxygen Sensor Malfunction: The oxygen sensor measures the amount of oxygen in your vehicle’s exhaust system and helps regulate fuel delivery. A malfunctioning oxygen sensor can cause the check engine light to come on and may result in reduced fuel economy and increased emissions.

  3. Faulty Mass Airflow Sensor: The mass airflow sensor measures the amount of air entering the engine and helps ensure proper fuel delivery. A faulty mass airflow sensor can lead to engine performance issues and trigger the check engine light.

  4. Catalytic Converter Issues: The catalytic converter is responsible for converting harmful emissions into less harmful gases. Problems with the catalytic converter, such as clogs or damage, can cause the check engine light to illuminate and may result in reduced engine performance.

  5. Ignition System Problems: Issues with the ignition system, such as faulty spark plugs or ignition coils, can cause misfires and trigger the check engine light. Ignition system problems should be addressed promptly to prevent further damage to the engine.

Our Process at AAMCO Chicagoland

When you bring your vehicle to AAMCO Chicagoland for check engine light diagnostics, you can expect the following process:

  1. Diagnostic Scan: Our technicians will use advanced diagnostic equipment to retrieve the trouble codes stored in your vehicle’s onboard computer. These codes provide valuable insight into the specific issue triggering the check engine light.

  2. Comprehensive Inspection: Once we have retrieved the trouble codes, we will perform a comprehensive inspection of your vehicle’s engine, ignition system, fuel system, and emissions components to identify the root cause of the problem.

  3. Expert Repairs: After identifying the issue, our skilled technicians will perform the necessary repairs or replacements to address the problem and restore your vehicle’s performance and efficiency.

  4. Clearing the Codes: Once the repairs are complete, we will clear the trouble codes from your vehicle’s onboard computer and ensure that the check engine light is reset.

Trust AAMCO Chicagoland for Check Engine Light Diagnostics and Repairs

When it comes to check engine light diagnostics and repairs, trust the experts at AAMCO Chicagoland to get the job done right. With our advanced diagnostic equipment, skilled technicians, and commitment to quality service, we’ll diagnose the issue accurately and provide you with the solutions you need to keep your vehicle running smoothly. Don’t ignore that check engine light – schedule an appointment with AAMCO Chicagoland today!

Schedule an Appointment

Please note that all appointments scheduled online are drop-off appointments. If you need a same-day or rush appointment within 24 hours, please call your nearest AAMCO location.

Check engine light FAQ

The check engine light illuminates when your vehicle's onboard computer detects a problem with the engine, emissions system, or other vital components. It's essential to have the issue diagnosed promptly to prevent further damage.

While it may be safe to drive with the check engine light on for a short distance, it's best to have the issue addressed as soon as possible. Ignoring the check engine light can lead to more severe problems and potential damage to your vehicle.

  • While it's possible to reset the check engine light using a diagnostic tool or by disconnecting the vehicle's battery, this doesn't fix the underlying issue. The light will likely come back on if the problem isn't addressed.

A flashing check engine light indicates a severe problem that requires immediate attention. It's best to pull over safely and have your vehicle towed to a qualified repair facility for diagnosis and repairs.

The cost of diagnosing and repairing a check engine light issue can vary depending on the severity of the problem and the specific repairs needed. It's best to schedule a diagnostic appointment to receive an accurate estimate.

In most cases, a vehicle with the check engine light illuminated will not pass an emissions test. It's essential to have the issue diagnosed and repaired before attempting to pass an emissions test.