What to Expect at Your Diagnostic Visit
A check engine light visit at Christian Brothers Automotive Andover is straightforward. After our ASE-certified technicians complete the diagnostic work, we walk you through exactly what was found, in plain language. No jargon, no guesswork. You’ll know what triggered the light, what caused it, and what your options are before any repair begins.
We also know your day doesn’t stop because your car needs attention. Our complimentary shuttle service lets you get where you need to go while we work. Our owner/operators are on-site every day, so you have a direct, accountable point of contact from the moment you arrive.
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.
Service You Can Count On, Backed by Our Warranty
Every repair we perform is backed by an industry-leading warranty, which reflects our confidence in the quality of our work. When we address the issue behind your check engine light, you leave with a clear understanding of the work completed.
Our approach to automotive care is guided by a simple principle: love your neighbor as yourself. That means we treat every customer in Andover the way we’d want to be treated. We’re not looking for a one-time transaction. We’re building relationships with drivers who can count on us when a warning light comes on or routine maintenance comes due. Our shop is a comfortable, welcoming place to be, and our team works to make sure every visit feels that way.
What Could Be Triggering Your Check Engine Light?
The check engine light can be triggered by issues ranging from a simple loose gas cap to more significant problems with the engine or emissions system. Knowing the common causes helps you understand why a thorough diagnostic matters.
Here are some of the most frequent causes our technicians see:
- Loose, cracked, or missing gas cap: One of the most common and least costly triggers. A poor seal on the fuel system is enough to turn the light on.
- Failing oxygen sensor: The oxygen sensor monitors exhaust gases and affects both fuel economy and emissions. A malfunctioning sensor is a frequent cause.
- Malfunctioning mass airflow sensor: This sensor measures the air entering the engine. When it fails, the engine management system can’t calculate the correct fuel mixture.
- Worn spark plugs or ignition components: Worn plugs can cause engine misfires that trigger the light immediately.
- Catalytic converter problems: A failing catalytic converter is a more serious issue that affects emissions performance and should be addressed promptly.
The behavior of the light matters too. A steady light usually points to a non-emergency issue that still deserves a timely diagnosis. A flashing check engine light signals something more urgent, such as an active engine misfire, that can risk further damage and warrants prompt attention.
Schedule Check Engine Light Diagnostics in Andover
We serve drivers throughout the Andover area, including Coon Rapids, Ham Lake, and Blaine. Whether your light just came on or has been on for a while, our team at Christian Brothers Automotive Andover is here to find the cause and help you get back on the road with confidence.
Call us at (763) 373-6933 or use our online contact form to schedule your appointment.
How the OBD-II System Works & Why Code Reads Aren’t Enough
Modern vehicles use an OBD-II onboard diagnostics system that continuously monitors engine and emissions components. When a sensor reading falls outside its normal range, the system stores a diagnostic trouble code and illuminates the check engine light. That code identifies which system flagged a problem, but it doesn’t tell you why.
A basic code scan from a parts store or a simple reader tells you the code. Finding the underlying cause requires further inspection, component testing, and the kind of methodical evaluation that distinguishes a real diagnostic from a code pull. Two vehicles can store the same code for entirely different reasons, and treating the symptom without identifying the root cause can lead to the light coming back on.
Catching a check engine light early also can help limit repair costs. A small issue like a failing oxygen sensor or a faulty mass airflow sensor can be less costly to correct than the damage that can follow if it goes unresolved. The engine control module depends on accurate sensor data to manage fuel delivery, emissions, and performance. When that data is wrong, the effects ripple outward.
Your Local Christian Brothers Amenities
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
-
"Thank you so much for going above and beyond. You are the best and I feel safer knowing my car is in such good hands!!"
- DJ Gardner