Engine Diagnostics in Evansville, IN

Fast, accurate engine diagnostics in Evansville, IN. ADA’s Auto Repair identifies issues quickly and honestly. Schedule your diagnostic today.

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Know What’s Going On Under the Hood

When your check engine light comes on, it’s easy to ignore — or worry. At ADA’s Auto Repair, we take the mystery out of what’s happening with your vehicle. With over 18 years of experience and advanced diagnostic tools, we provide accurate, honest engine diagnostics in Evansville, IN, so you can make informed decisions about your car’s care.



Our goal is simple: find the issue fast, explain it clearly, and fix only what’s necessary. No pressure. No upselling. Just real answers from a team you can trust.

Why Engine Diagnostics Matter

Modern vehicles are controlled by complex computer systems with dozens of sensors monitoring everything from engine temperature to emissions. When something goes wrong, your car’s onboard computer triggers a diagnostic trouble code (DTC) — but that code only points to the symptom, not the root cause.


That’s where professional engine diagnostics come in.


At ADA’s Auto Repair, we go beyond the code reader. We use OEM-grade scan tools, real-time data analysis, and years of hands-on knowledge to understand what’s really causing the issue. Whether it’s a faulty sensor, misfiring cylinder, or an emissions control problem, we track it down quickly and accurately.

Common Warning Signs You Need Diagnostics

If you’re experiencing any of the following, it’s time to bring your vehicle in for a diagnostic evaluation:

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Check Engine Light is on or flashing

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Rough idling or stalling

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Engine knocking or pinging sounds

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Decreased fuel economy

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Difficulty starting or inconsistent performance

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Failed emissions test

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Warning lights for transmission, oil pressure, or temperature

Delaying a diagnostic could turn a small problem into a major (and costly) repair. Our diagnostics help you stay ahead of breakdowns and make smart, budget-conscious choices.

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What to Expect During Engine Diagnostics

When you visit ADA’s Auto Repair for diagnostics, we follow a thorough, step-by-step process designed to pinpoint the issue without wasting your time or money.

Initial Scan

We use high-end diagnostic scan tools to retrieve any trouble codes stored in your vehicle’s computer.

Data Review

We analyze real-time data from sensors, fuel trims, temperature readings, and more to identify patterns and inconsistencies.

Hands-On Testing

Our technicians perform additional tests (like vacuum tests, fuel pressure checks, or component inspections) if needed to confirm the root cause.

Results & Recommendations

Once we’ve identified the issue, we’ll explain exactly what’s wrong, what caused it, and what your options are — with no pressure to authorize unnecessary repairs.

Why Choose ADA’s Auto Repair for Diagnostics?

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Honest, Transparent Service

We don’t use diagnostics to “find things to fix.” We use them to get you the right fix — nothing more, nothing less.

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Advanced Tools + Real Experience

Our veteran-owned shop combines cutting-edge diagnostic equipment with over 18 years of hands-on problem-solving.

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Fast Turnaround

Many diagnostics are completed the same day. If a repair is needed, we’ll let you know your options immediately.

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No Guesswork

We don’t believe in throwing parts at a problem. Our technicians take the time to get it right — and explain it clearly.

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Trusted by Evansville Drivers

We’re proud to be the go-to auto repair shop for families, commuters, and small businesses across Evansville, IN. Our reputation is built on precision and integrity.

FAQs About Engine Diagnostics

  • How much do diagnostics cost?

    We offer competitive pricing on all diagnostic services. Costs vary depending on the issue’s complexity, but we’ll always quote you upfront before doing any work.

  • Can I just use a free code reader at an auto parts store?

    Appointments are recommended, but we accept walk-ins when possible. Call (812) 589-1489 to check availability.

  • Will you fix the problem the same day?

    In many cases, yes. If we diagnose a simple issue like a bad sensor or loose connection, we can repair it immediately. Larger repairs may require scheduling, but we’ll walk you through everything.

  • Do you work on all vehicle types?

    Yes. We service most domestic and foreign makes and models, including trucks, SUVs, and sedans.

Book Your Diagnostic Today

When something doesn’t feel right, don’t ignore it. ADA’s Auto Repair provides accurate, trustworthy engine diagnostics in Evansville, IN so you can keep your vehicle — and your peace of mind — in top shape.



Whether you’re chasing down a mysterious check engine light or just want a second opinion, we’re here to help.

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Visit Us

2317 East Florida Street, Evansville, IN 47711

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Business Hours

Mon–Fri 7:30 AM – 4:30 PM (Closed Sat & Sun)

Schedule your appointment today, and let us show you what honest diagnostics should look like.

Contact Us