Will Advance Auto Check Engine Lights? Your Comprehensive Guide

Yes, Advance Auto Parts will typically check your check engine light for free. This service is designed to help you understand why that pesky light is illuminated and potentially diagnose the underlying issue.

Understanding the Check Engine Light Service at Advance Auto

A glowing check engine light (CEL) is a vehicle’s way of saying, “Hey, something’s not quite right!” Ignoring it can lead to bigger, more expensive problems down the road. That’s where Advance Auto Parts comes in. They offer a valuable service to help you decipher the message your car is sending. But what exactly does this service entail, and what can you expect? Let’s dive into the details.

The Basics of the Diagnostic Scan

When you bring your vehicle to an Advance Auto Parts store with a lit CEL, a store associate will typically use an OBD II (On-Board Diagnostics II) scanner to retrieve diagnostic trouble codes (DTCs) from your car’s computer. These codes are essentially clues that point to the potential cause of the problem. The scanner plugs into your car’s OBD II port, usually located under the dashboard.

What Happens After the Scan?

Once the scanner pulls the codes, the associate will provide you with a printout of the retrieved DTC codes. More importantly, they’ll explain what these codes generally indicate. For example, a P0420 code often points to a catalytic converter issue. However, it’s vital to understand that these are just starting points. The associate cannot provide a definitive diagnosis.

Limitations of the Free Service

It’s crucial to understand the limitations of this free check engine light service. While helpful, it is NOT a substitute for a thorough diagnostic inspection by a qualified mechanic. The Advance Auto associate will not:

• Perform any hands-on repairs or troubleshooting.
• Disassemble any part of your vehicle.
• Guarantee the accuracy of the code interpretation (it’s just a starting point).
• Clear the check engine light (they may clear it in some locations, but you should confirm this first. It is better to have a professional mechanic clear the light after confirming the repair).

Why is this service valuable?

Even with its limitations, this free CEL scan provides significant value. It gives you a direction for your next steps. Knowing the potential problem areas allows you to:

• Do your research.
• Get informed estimates from repair shops.
• Avoid being taken advantage of by unscrupulous mechanics.

Alternatives to Advance Auto

While Advance Auto Parts is a popular option, other auto parts stores like AutoZone, O’Reilly Auto Parts, and Pep Boys also typically offer similar free check engine light scanning services. It’s always a good idea to check with your local store to confirm availability and specific policies. Moreover, remember you can visit a mechanic.

Frequently Asked Questions (FAQs)

Here are 12 frequently asked questions to further clarify the process and benefits of getting your check engine light checked at Advance Auto Parts or similar stores.

1. Do I need an appointment to get my check engine light checked at Advance Auto?

Generally, no appointment is needed. The service is usually offered on a first-come, first-served basis. However, it’s always a good idea to call your local store beforehand to confirm their policy and ensure they have staff available to perform the scan.

2. How long does the check engine light scan take?

The actual scanning process is usually quick, taking only a few minutes. However, expect to spend a little more time discussing the results with the store associate and reviewing the printout. Allow for around 15-30 minutes for the entire process.

3. Can Advance Auto tell me exactly what’s wrong with my car?

No, the free check engine light scan is not a substitute for a professional diagnosis. They can only provide you with the DTC codes and a general idea of what those codes might indicate. Further diagnostic work by a qualified mechanic is often necessary to pinpoint the precise problem.

4. Will Advance Auto fix my car after checking the check engine light?

No, Advance Auto Parts is not a repair shop. Their service is limited to reading and explaining the diagnostic trouble codes. They will not perform any repairs or maintenance on your vehicle.

5. Is the check engine light service really free?

Yes, the basic check engine light scanning service itself is usually free at most Advance Auto Parts stores. This is a service to entice you to become a customer for parts that they think you may need for the repair.

6. What if the OBD II scanner doesn’t detect any codes?

Sometimes, the scanner might not detect any codes, even if the check engine light is on. This could indicate a more complex issue that requires specialized diagnostic equipment. In such cases, it’s best to consult with a qualified mechanic.

7. Can I clear the check engine light myself after getting the scan?

While you can clear the check engine light yourself with an OBD II scanner (some stores may even do it for you), it’s generally not recommended unless the underlying problem has been properly addressed. Clearing the light without fixing the issue will only temporarily hide the problem, and the light will likely return. Furthermore, important system monitors may not run and your car could fail an inspection.

8. What are some common reasons for the check engine light to come on?

The reasons are numerous, but some common culprits include a loose gas cap, a faulty oxygen sensor, a failing catalytic converter, issues with spark plugs or ignition coils, and problems with the mass airflow sensor.

9. Does a flashing check engine light mean something different?

Yes, a flashing check engine light typically indicates a more serious problem, such as an engine misfire that could damage the catalytic converter. It’s crucial to address a flashing CEL immediately to prevent further damage. Stop driving the vehicle if it is flashing until it is resolved.

10. Will a check engine light affect my car’s performance or fuel economy?

It depends on the underlying issue. In some cases, a CEL might not noticeably affect performance. However, in other instances, it can lead to reduced fuel economy, rough idling, stalling, or a loss of power.

11. Is it safe to drive with the check engine light on?

It depends. If the light is solid and the car seems to be running normally, it’s usually safe to drive for a short period, but it’s still best to get it checked as soon as possible. However, if the light is flashing, or if you notice any significant performance issues, it’s best to avoid driving the car until the problem is diagnosed and repaired.

12. What should I do after getting the check engine light codes from Advance Auto?

After getting the codes, the best course of action is to research the potential causes of those codes. Get multiple estimates from reputable mechanics to find the best value and to confirm if the original diagnosis is valid. Ultimately, have the repairs made by a qualified professional to ensure the issue is resolved correctly.