What to Expect with a Check Engine Light Diagnostic Service
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.

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


Common Causes of a Check Engine Light
When your check engine light illuminates, it can be due to a variety of issues, ranging from minor to more serious concerns.
Common reasons include:
- Loose or Faulty Gas Cap: A loose or damaged gas cap can cause fuel vapors to leak, triggering the check engine light.
- Oxygen Sensor Failure: The oxygen sensor monitors the amount of unburned oxygen in your vehicle's exhaust system. A malfunction can lead to poor fuel economy and increased emissions.
- Catalytic Converter Issues: A failing catalytic converter can reduce engine performance and increase harmful emissions.
- Mass Air Flow Sensor Problems: This sensor measures the amount of air entering the engine to ensure the correct air-fuel mixture. A malfunction can lead to poor engine performance.
- Spark Plug or Ignition Coil Issues: Worn spark plugs or faulty ignition coils can cause engine misfires, leading to poor performance and increased emissions.
Addressing these issues early can prevent more severe damage and costly repairs.
How We Diagnose and Repair Check Engine Light Issues
At Christian Brothers Automotive Hamilton Mill, we utilize advanced diagnostic tools to identify the cause of your check engine light accurately.
Our process includes:
- Diagnostic Scan: We connect your vehicle to an OBD-II scanner to retrieve trouble codes stored in your vehicle's computer system.
- Component Testing: Our ASE-certified technicians perform tests on components such as the oxygen sensor, mass airflow sensor, and ignition system to pinpoint the issue.
- Visual Inspection: We conduct a thorough visual inspection of your vehicle's engine and related systems to identify any obvious problems.
- Clear Communication: Once the issue is identified, we provide you with a clear explanation and discuss the necessary repairs.
- Repairs and Maintenance: We perform the necessary repairs using high-quality parts, ensuring your vehicle runs smoothly.
Our goal is to restore your vehicle's performance and give you peace of mind.
Why It's Important to Address a Check Engine Light Early
Ignoring a check engine light can lead to more serious and costly problems down the road.
Here's why timely attention is crucial:
- Prevent Further Damage: Early diagnosis and repair can prevent minor issues from escalating into major engine problems.
- Maintain Fuel Efficiency: Addressing issues like faulty sensors can improve your vehicle's fuel economy.
- Reduce Emissions: Addressing exhaust system issues helps mitigate harmful emissions, thereby contributing to a cleaner environment.
- Ensure Safety: Some check engine light triggers are related to critical engine functions; addressing them promptly ensures your vehicle remains safe to drive.
At Christian Brothers Automotive Hamilton Mill, we are committed to providing honest, reliable service to keep your vehicle in optimal condition.
If your check engine light is on, don't wait!
Contact us at (770) 525-7448 or online to schedule an appointment in Dacula, GA, today! Our expert technicians are here to help you get back on the road safely and efficiently.
FAQs
-
Q. "What is the difference between a steadily lit and a flashing check engine light?"
-
Q. "Why is my check engine light on but nothing seems to be wrong with my vehicle?"
-
Q. "Do you offer a warranty?"
-
Q. "Can you provide service under my extended warranty?"
-
Q. "What to do if your check engine light turns on?"
-
Q. "Is it safe to drive your car when the check engine light is on?"
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
-
"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.