Check Engine Light Services in Nicholasville, KY

Expert Check Engine Light Diagnostics

Seeing the check engine light illuminate on your dashboard can be unsettling. That little light is your vehicle’s way of communicating that it needs attention. Ignoring it could lead to more significant problems and costly repairs down the road. At Christian Brothers Automotive Brannon Crossing, we're here to help you understand what that light means and provide reliable, honest service to get you back on the road.

When you visit us for check engine light service in Nicholasville, we start by listening to what you have noticed while driving, such as rough idling, reduced power, or unusual smells. By combining your observations with our diagnostic findings, we can narrow down potential causes more quickly and avoid unnecessary parts replacement. This thoughtful approach helps protect your budget and keeps your vehicle ready for everyday driving on local roads and highways.

Why Is My Check Engine Light On?

The check engine light can be triggered by a wide range of issues, ranging from a simple loose gas cap to a more serious engine malfunction. Since there are so many possibilities, the cause often feels like a mystery without a professional diagnosis.

Common culprits behind this warning include:

  • Oxygen Sensor: Measures exhaust oxygen levels; failure lowers fuel economy and increases harmful emissions.
  • Ignition Issues: Worn spark plugs or coils disrupt combustion, causing misfires or poor engine performance.
  • Catalytic Converter: This critical emission component prevents pollution but can clog or fail over time.
  • Airflow Sensor: Measures incoming air to determine fuel injection; failure leads to stalling or hesitation.
  • Loose Cap: A loose or damaged gas cap causes fuel vapor leaks, triggering the warning light.

Other problems, such as vacuum leaks or fuel system failures, can also trigger the light. If the light flashes, it indicates an urgent issue requiring immediate attention to prevent severe damage. At Christian Brothers Automotive Brannon Crossing, our technicians use advanced equipment to pinpoint the exact cause and solve the problem at its source.

Is your check engine light on in Nicholasville? 

Our experts use advanced diagnostics to find the problem quickly and accurately. We'll get you back on the road safely. Book a service online or call (859) 549-5454.

Comprehensive Diagnostics and Repair Services

A check engine light can indicate anything from a loose gas cap to a failing transmission. Our facility offers complete professional diagnostics in Nicholasville to identify and resolve these issues efficiently. We handle every step of the process, from the initial scan to the final repair, ensuring your vehicle's engine and emission systems function perfectly.

Our complete range of diagnostic and repair solutions includes:

  • Code Reading: Connecting a professional diagnostic tool to retrieve specific error codes.
  • Sensor Replacement: Installing new oxygen sensor or mass airflow sensor units when they fail.
  • Ignition Service: Replacing worn spark plugs and ignition coils to restore smooth firing.
  • Emission Repair: Inspecting and replacing the catalytic converter if it becomes clogged.
  • System Testing: performing smoke tests and pressure checks to locate hidden vacuum leaks.

Whether your issue is minor or major, we have the skills to fix it. We focus on restoring your vehicle's performance and fuel economy so you can drive with confidence.

Our Comprehensive Diagnostics Process

When you bring your vehicle to our Nicholasville location for a check engine light service, we follow a detailed process to ensure an accurate and thorough diagnosis. Our technicians will:

  • Connect a diagnostic tool to your vehicle’s computer system to retrieve the specific trouble codes.
  • Analyze the data from the codes and perform a comprehensive inspection of the related systems. This includes checking everything from sensors and electrical connections to the engine and exhaust system.
  • Provide a clear explanation of what the problem is, what is needed to fix it, and what the repair will cost. We believe in transparency and want you to feel confident about the recommended repairs.

During this process, we also review your vehicle’s maintenance history and mileage so we can see whether past services or overdue maintenance may be contributing to the warning light. By looking at the full picture, we can recommend repairs that address the immediate issue while also helping you plan for future maintenance. This careful approach supports safer driving around Nicholasville and can extend the life of critical components like your engine and emission system.

We understand that your time is valuable. Our goal is to provide a swift and accurate diagnosis, allowing us to perform the necessary repairs efficiently and get you back on the road safely.

Your Trusted Local Automotive Partner

At Christian Brothers Automotive Brannon Crossing, we're dedicated to serving our Nicholasville community with integrity and excellence. Our commitment to outstanding service extends beyond the repair itself. 

When you choose us, you're not just getting a repair; you're getting a partner dedicated to the long-term health and performance of your vehicle. We stand by our work with a nationwide warranty, so you can have peace of mind knowing your repairs are covered.

Many of our guests rely on their vehicles for daily commutes, school drop-offs, and trips across Jessamine County, so we focus on building relationships that last beyond a single visit. We take time to answer your questions, help you prioritize any recommended services, and explain what can wait until your next appointment. By treating you like a neighbor and caring for your car as if it were our own, we aim to make check engine light concerns less stressful and help you feel confident every time you start your vehicle.

Don't ignore that check engine light! 

Get professional diagnostics in Nicholasville to avoid major repairs. Book a service online or call (859) 549-5454.

What to Expect with a Check Engine Light Diagnostic Service

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1. Schedule Your Appointment

Whether scheduling online or over the phone be sure and let us know what you're experiencing so we can provide fast and accurate service advice.

2. Diagnostics and Inspections

Drop off your vehicle and the shop will get to work with inspections and diagnostics using the same equipment as the manufacturers to determine issues and next steps.

3. Digital Vehicle Inspection Report and Estimate

Following the diagnosis we will text you a digital vehicle inspection report, containing pictures and videos of our findings and recommendations.

4. Review and Approval

A service advisor will reach out to walk you through the findings and recommendations to determine how you would like to proceed, or you can approve work directly in your DVI.

5. Work Performed or Scheduled

Most work can be completed immediately, or scheduled based on parts and customer availability.

Call For a Quote
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Did You Know: On average, cars spend 95% of their lifetime parked.

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Signs You Need Professional Diagnostics

While the check engine light itself is the most obvious sign, your vehicle often exhibits other symptoms indicating an engine malfunction. Paying attention to how your car drives can help us diagnose the issue faster. If you experience performance changes along with the warning light, it is time to schedule a check engine light service in Nicholasville.

Watch for these common indicators that your system needs attention:

  • Rough Idling: The engine shakes or feels unsteady when stopped at a red light.
  • Poor Economy: You notice a sudden drop in gas mileage due to a faulty oxygen sensor.
  • Hard Starting: The vehicle struggles to turn over or takes several tries to start.
  • Lack of Power: Sluggish acceleration when merging onto the highway or climbing hills.
  • Strong Odors: A smell of rotten eggs often indicates a failing catalytic converter.

Frequently Asked Questions


Can I drive with my check engine light on?

If the light is steady, you can usually drive to the shop, but you should schedule check engine light service Nicholasville residents trust soon. However, if the light is flashing, pull over immediately. A flashing light indicates a severe misfire that can destroy your catalytic converter quickly.

What causes a check engine light to come on?

The most common causes include a loose gas cap, worn spark plugs, or a faulty oxygen sensor. It is your car's way of telling you that the emissions or engine control system is not working within the manufacturer's set parameters.

How much does a diagnostic test cost?

The cost varies, but paying for professional diagnostics in Nicholasville is an investment in accuracy. We don't just pull a code; we test the system to find the root cause. This prevents you from wasting money on parts that don't fix the actual problem.

Will the light go off on its own?

Sometimes, if the issue was temporary, like a loose gas cap that was tightened, the light may turn off after several drive cycles. However, if a part like a mass airflow sensor has failed, the light will stay on until the component is replaced and the code is reset.

What happens if I ignore the light?

Ignoring the light can lead to reduced fuel economy, higher emissions, and collateral damage to other parts. For example, driving with a bad ignition coil can dump unburned fuel into the exhaust, ruining the expensive catalytic converter.

Choose the Nicholasville shop that neighbors trust. Schedule your appointment online or call (859) 549-5454 for honest, accurate service.

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Your Local Christian Brothers Amenities

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FAQs

  • Q. "What is the difference between a steadily lit and a flashing check engine light?"
    A steadily lit light means that a sensor is sending a signal to your vehicle's computer that something is wrong or it could simply mean that the sensor is out. If your check engine light is flashing, however, that means there is a serious issue and you should stop driving immediately.
  • Q. "Why is my check engine light on but nothing seems to be wrong with my vehicle?"
    If nothing within your vehicle stands out, then it is possible that it is just a minor issue such as a loose gas cap or a bad O2 sensor. It is still recommended to see a mechanic if the light doesn't disappear to check for any larger issues.
  • Q. "Do you offer a warranty?"
    As part of our Nice difference.® commitment to providing our customers the best auto service experience possible, we also offer a3-year/36,000-mile warranty on all the work that we do. We offer this warranty at every Christian Brothers Automotive nationwide, and it will be honored at any location, regardless of which branch did the initial work.
  • Q. "Can you provide service under my extended warranty?"
    Yes. At Christian Brothers Automotive, we work with all major extended warranty providers to make needed repairs for our customers. If you have an extended warranty, you can discuss your carrier with our team when scheduling an appointment and confirm that the work will be covered. You can find a partial list of the extended warranty companies we work with here.
  • Q. "What to do if your check engine light turns on?"
    We recommend heading to your local auto shop as soon as you are able. This is typically a sign that there is an abnormality within your engine.
  • Q. "Is it safe to drive your car when the check engine light is on?"
    It depends. If you are experiencing other noticeable issues with your vehicle, it may be best to pull over. Otherwise, it is typically okay to drive to your local auto shop. You will want to get this checked sooner rather than later to avoid being stranded with a broken-down car.

Have more Questions?

Our friendly auto service experts have the answers.

Call your local Christian Brothers Automotive car shop today

Hear What Our Customers Had to Say About Us

  • "Wow! I am so impressed with their service. and when i explained that i had a significant medical appointment, they went out of their way to complete the master cylinder replacement on my car. they are so courteous! I won't be going anywhere else!"

    - Mary T

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