Check Engine Light

Check Engine Light Diagnostics in Cedar Park, TX

What is your Check Engine Light telling you?

We understand at Eagle Transmission in Cedar Park that when your check engine light comes on it can be a scary time. This minor dashboard alert might be as simple as a loose gas cap or could indicate that your transmission is starting to fail. With the use of state-of-the-art diagnostic equipment, our technicians can identify minor issues before they become major problems.


Why Does the Check Engine Light Come On

The check engine light is part of your car’s onboard diagnostic system. It scans the engine, transmission and emissions systems. When something goes south, the light comes on to let you know. Common causes include:

  • Loose or faulty gas cap
  • Failing oxygen sensor
  • Spark plug or ignition coil problem
  • Mass airflow sensor problems
  • Catalytic converter failure
  • Transmission or drivetrain problems


Categories of Check Engine Light Alerts Steady, On:

  • Lights to indicate a harmless situation that needs your attention
  • Flashing Light – Indicates a very severe problem that’s often related to misfires or fuel issues, and you need to stop the vehicle immediately
  • If your light is flashing, pull over as soon as you safely can and give us a call.

Why Choose Eagle Transmission Cedar Park?

  • Free transmission diagnostics included

  • Certified technicians with years of experience

  • State-of-the-art diagnostic equipment

  • Clear explanations in plain language

  • Warranty-backed repairs for peace of mind

When to Schedule Service Immediately

Call us right away if your check engine light is on and you also notice:

  • Rough idling or stalling

  • Unusual noises from the engine or transmission

  • Decreased power or acceleration

  • Strong fuel or burning smells

Why You Shouldn’t Ignore the Light

Even if your car still drives normally, ignoring the check engine light can cause:

  • Lower fuel efficiency

  • More expensive repairs later

  • Engine or transmission damage

  • Increased emissions and inspection failures

Our Check Engine Light Diagnostic Process

When you bring your vehicle to Eagle Transmission Cedar Park, here’s what we do:

  1. Connect advanced scan tools to read error codes

  2. Inspect related parts such as sensors, spark plugs, or fuel components

  3. Perform a road test to confirm symptoms

  4. Provide a detailed explanation of the issue

  5. Give you an honest estimate before making repairs

Common Repairs After Diagnostics

  • Replacing spark plugs or ignition coils

  • Repairing or replacing oxygen sensors

  • Fixing mass airflow sensors

  • Servicing catalytic converters

  • Transmission or drivetrain repairs

  • Fuel system cleaning or repairs


Delaying service in these cases can cause major damage to your vehicle.

📍 Address: 200 S Bell Blvd, Cedar Park, TX 78613
 📞 Call Us: (512) 331-9797
 🕒 Hours: Monday – Friday: 8:00 AM – 5:00 PM
 💻 Schedule Online: https://cedarparktransmission.com/