Check Engine Light & Engine Diagnostics in Greenville, TX

Get the Answers You Need--J&T Automotive Has Them!

Your check engine light comes on, and you get stressed out. At Eagle Transmission & Auto Repair, we make it easy in Greenville, TX. Advanced diagnostics ensures our certified mechanics find the problem fast and advises you of your options. Whether it is a minor issue or major engine repair, we’ll get you back to where you need to be without fear.

We're the go-to guys for engine diagnostics in Greenville and throughout Hunt County!

Why Is My Check Engine Light on?

The check engine light can signal any number of things — some as simple as a loose gas cap. Common causes include:

Loose or faulty gas cap
Worn spark plugs
Oxygen sensor failure
Faulty mass airflow sensor
Fuel injector problems
Catalytic converter issues
Ignore the light and a simple repair could turn into much more costly work. It’s why we suggest visiting as soon as it’s on.”.

Why Choose Eagle Transmission Greenville?

Certified Technicians – Skilled in all makes and models
Advanced Tools – Modern technology for accurate results
Free Road Tests – We verify performance after repairs
Honest Communication – We explain repairs clearly before starting
Trusted Reputation – Serving Greenville drivers for years

We don’t just “read codes.” We find the real cause of the issue and fix it right the first time.

Serving Greenville & Nearby Areas

We proudly serve drivers in:

Greenville
Commerce
Royse City
Quinlan
Caddo Mills
All of Hunt County

Our Engine Diagnostic Services

At our auto repair shop in Greenville, we utilize state-of-the-art technology to scan your car’s computer and determine the precise cause of any issue.

Our services include:

Full Computer Diagnostics – Quick detection of trouble codes
Test Fuel System – Verifying fuel is being correctly delivered
Testing Ignition System – Spark plugs, ignition coils and timing
Emissions System Testing – Reading problems when it comes to emissions and/or inspections
Real Time Data Monitoring – Monitor Engine Performance In Real Time

Benefits of Early Diagnostics

Having your check engine light looked at early can:

Prevent costly breakdowns
Improve fuel efficiency
Prolong the life of your engine
Ensure you pass state inspections
Why trust your car with anyone else?