Check Engine Light Diagnostic | Lewisville TX Auto Repair

Check Engine Light Diagnostics in Lewisville, TX

When your check engine light comes on, it’s easy to panic — but don’t worry. At Eagle Transmission & Auto Repair in Lewisville, we provide fast, accurate check engine light diagnostics to find the problem and get you safely back on the road.

What the Check Engine Light Means

Your check engine light is connected to your vehicle’s computer system. When a sensor detects something wrong with the engine, transmission, or emissions system, the light turns on. This could be as simple as a loose gas cap — or as serious as an engine misfire.

Common Causes of the Check Engine Light

Our diagnostic tools can identify issues such as:

Loose or damaged gas cap
Oxygen sensor failure
Faulty spark plugs or ignition coils
Mass airflow sensor problems
Fuel system issues
Transmission-related trouble codes
Emission system malfunctions

Steady vs. Flashing Check Engine Light

Steady Light – Usually a minor issue, but should still be checked soon
Flashing Light – Serious engine problem. Pull over safely and call us immediately to avoid major damage

Our Check Engine Light Service

When you bring your car to Eagle Transmission Lewisville, we:

Perform a computer scan to read stored codes
Inspect related parts and systems
Provide a clear explanation of the issue
Offer honest repair recommendations

You’ll leave knowing exactly what’s going on — no guessing, no unnecessary repairs.

Why Choose Eagle Transmission Lewisville?

Advanced Diagnostic Equipment – Pinpoint problems fast
Certified Technicians – Skilled in both engine and transmission systems
Honest Service – We explain issues in plain language
Local, Family-Owned Shop – Proudly serving Lewisville, Coppell, Flower Mound & The Colony
Complete Auto Care – From small fixes to major repairs, we handle it all