Check Engine Light Diagnostics in Lavon, TX

When your check engine light turns on, it’s your car’s way of saying something isn’t right. At Eagle Automotive & Transmission Repair in Lavon, we provide fast, accurate diagnostics to find the problem and fix it before it becomes a major repair.


Why the Check Engine Light Comes On

The check engine light can be triggered by many different issues, including:

  • Loose or damaged gas cap
  • Faulty oxygen sensor
  • Failing catalytic converter
  • Mass airflow sensor problems
  • Spark plug or ignition issues
  • Transmission or fuel system trouble

Because the causes vary, it’s important to have your vehicle scanned by professionals.



Signs You Shouldn’t Ignore

If your check engine light is:

  • Flashing – This indicates a serious problem. Stop driving and call us immediately.
  • Steady – It’s still important to get checked soon to avoid costly repairs.

Other symptoms include rough idling, poor gas mileage, or loss of power.

Our Check Engine Light Services in Lavon

Computer Diagnostics

We use advanced scanners to read trouble codes and identify the source of the problem.


Engine System Testing

From sensors to ignition systems, we test components to confirm the issue.


Transmission Diagnostics

Sometimes the light is triggered by transmission issues. We provide free transmission diagnostics to give you peace of mind.


Preventative Inspections

We check related systems such as cooling, electrical, and fuel to ensure there are no hidden issues.

Why Choose Us for Diagnostics in Lavon?

  • Certified Technicians with years of experience
  • State-of-the-Art Diagnostic Tools
  • Clear Explanations before any repairs begin
  • Affordable Pricing – free transmission diagnostics and fair rates for engine scans
  • Trusted Local Shop serving Lavon and Collin County


Serving Lavon & Nearby Areas

We proudly provide engine diagnostics for drivers in Lavon, Wylie, Farmersville, Nevada, Josephine, and surrounding areas.

📍 Address: 14774 Co Rd 746, Lavon, TX 75166
📞 Phone: (972) 853-8460
🕒 Hours: Monday – Friday: 8:00 AM – 5:00 PM
💻 Book Online: Schedule Diagnostics