How Our Check Engine Light Diagnostic Process Works
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.
See Your Vehicle’s Condition Before Approving Anything
Our free Digital Vehicle Inspection changes the dynamic of a typical shop visit. Instead of taking our word for what’s wrong, you receive actual photos and videos of your vehicle’s condition sent directly to your phone. You see exactly what our skilled technicians see.
A service advisor then walks you through every finding in plain language. You approve the work through the Digital Vehicle Inspection report at your own pace, whether you’re at the shop, at home, or at the office. No pressure, no guesswork, no surprises on the invoice.
Common Reasons Your Check Engine Light Is On
The check engine light can signal anything from a simple fix to something that needs prompt attention. These are the causes our skilled technicians diagnose most often in Rockwall:
- Loose or damaged fuel cap: One of the most frequent triggers. A compromised seal disrupts the evaporative emission system and is often resolved quickly.
- Oxygen sensor failure: Affects how your vehicle measures exhaust oxygen levels, which can reduce fuel economy and increase emissions over time.
- Catalytic converter issues: Often a downstream result of other unresolved problems, affecting emissions control and overall performance.
- Ignition coil or spark plug problems: Can cause engine misfires, rough idling, and a noticeable drop in power.
- Mass airflow sensor malfunction: Disrupts the air-fuel mixture calculation, leading to rough idling or sluggish acceleration.
A precise diagnostic confirms the actual source before any repair is recommended.
Schedule Your Check Engine Light Diagnostic in Rockwall
Mark and Amy Stehr and the team at Christian Brothers Automotive Rockwall are ready to find out what your vehicle is telling you. Every repair is backed by our Nice difference.® 3-year/36,000-mile warranty, and our five-step process keeps you informed and in control from start to finish.
Call us at (972) 779-6112 or book your appointment online today.
Flashing vs. Solid Check Engine Light: What the Difference Means
Not all check engine lights carry the same urgency, and knowing the difference helps you decide how quickly to act.
Solid Check Engine Light
A steady light means your vehicle’s computer has detected an issue that should be diagnosed promptly. The vehicle is typically safe to drive carefully to the shop, but don’t ignore it. Even when you notice no change in how the car drives, the underlying problem, often an emissions system fault or a sensor issue like a failing oxygen sensor or mass airflow sensor, can worsen and lead to a more extensive repair.
Flashing Check Engine Light
A flashing light signals an active engine misfire serious enough to cause rapid damage, including damage to the catalytic converter if driving continues. Minimize driving immediately and seek service as soon as possible. This isn’t a wait-and-see situation.
If you’re unsure which applies to your vehicle, the safest move is to call Christian Brothers Automotive Rockwall at (972) 779-6112 and describe what you’re seeing. We can help you figure out the right next step before you drive another mile.
Your Local Christian Brothers Amenities
FAQs
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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.
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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.
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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.
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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.
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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.
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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
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"I liked the customer service and going above and beyond to make sure I was comfortable while waiting in the store for my vehicle work to be done, specifically being offered a nice hot coffee with creamer."
- J.L.