Engine Diagnostics Gilbert

Today's Hyundai vehicles are more advanced than ever. Modern cars can have nearly a hundred small computers working together with sensors throughout the vehicle, all monitoring performance in real time. When something's off, your check engine light is your car's way of asking for attention. 

The tricky part? That little light doesn't tell you what's wrong—just that something needs a closer look.

As Kelley Blue Book explains, "The issue could be anything from a loose gas cap to something more serious, like a misfiring engine. You just never know." They also warn that if your check engine light is flashing, you should pull over immediately. It signals a serious issue that could cause further damage if you keep driving.

The bottom line: don't ignore it, and don't just guess. Get a proper diagnosis.

The Advantage of Hyundai Certified Technicians

You might be tempted to visit a quick-lube shop or use a handheld code reader from the auto parts store. While those tools can tell you a code, they can't tell you the whole story. 

Consumer Reports puts it simply: "The code will typically just point you in the direction of the problem, and still requires an experienced professional to fully diagnose and repair the issue."

 That's where Hyundai certified technicians make all the difference. Our team at Earnhardt Hyundai San Tan has completed factory training specific to Hyundai vehicles and uses OEM diagnostic equipment designed to communicate directly with your car's systems. We don't just read codes—we interpret them, test components, and find the real root cause.

Studies from AAA have shown that vehicles serviced by ASE-certified mechanics experience 30% fewer repeat repairs compared to those handled by uncertified technicians. When accuracy matters, certification matters.  

What to Expect During Your Diagnostic Appointment

We believe auto service should be straightforward and stress-free. Here's how our process works:

1. Check-In – Drop off your Hyundai and meet with a service advisor who will listen to your concerns and note any symptoms you've experienced.
   
   

2. Diagnostic Scan – Our certified technicians connect your vehicle to Hyundai's factory diagnostic system, pulling codes and running tests to identify the issue.
   

3. Clear Explanation – We'll walk you through exactly what we found, what it means, and your repair options—with transparent pricing and no pressure.
   

Serving Gilbert and the East Valley

Earnhardt Hyundai San Tan is conveniently located in the SanTan Motorplex, right off Loop 202 and Val Vista Drive in Gilbert. We proudly serve Hyundai owners from across the East Valley, including Mesa, Chandler, Queen Creek, San Tan Valley, Apache Junction, Florence and beyond! 

One of our recent customers shared their experience: "Took my 2016 Santa Fe in for a check engine light issue and they checked it from bumper to bumper. They found a bad thermostat and several more minor issues."

That's the thorough, honest service you can expect every time.  

The Earnhardt family has been serving Arizona drivers for over 65 years—and our tradition of honest, reliable service is at the heart of everything we do.  

What Our Customers Say

Don't just take our word for it. Here's what real customers have to say about our service team:

"My 2023 Hyundai Elantra was at another shop for repairs, but they were unable to calibrate the rear sensors. Larry sent a technician to assess the situation and brought my car back to Earnhardt, where they discovered it needed a new 12V battery—which was replaced under warranty. You can buy a Hyundai anywhere, but if you want real service, this is the place to go."

"They're true to their word, done in the time and at the cost they quoted. There's absolutely no surprises here. They're kind and considerate about your needs and don't oversell what you can't afford."  

Earnhardt Hyundai San Tan has been recognized as the #1 Hyundai Dealer in Arizona for service satisfaction—and we work hard to earn that reputation with every customer.  

Schedule Your Hyundai Engine Diagnostic Today

If your check engine light is on—or your Hyundai just doesn't feel right—don't wait for a small issue to become a big one. Schedule your diagnostic appointment today and let our certified technicians take care of the rest. 

Be sure to check our current service specials—you might save on your next visit! 

Schedule online. Or, call us at 480-384-8000. 

 Get answers—not guesswork.

Frequently Asked Questions

How much does a Hyundai engine diagnostic cost in Gilbert, AZ?

Diagnostic fees vary, but at Earnhardt Hyundai San Tan, we offer competitive rates and may waive the diagnostic fee when you complete the recommended repair with us. Contact our service team for current pricing.

How long does a Hyundai diagnostic take?

Most diagnostic scans take between 30 minutes and one hour, depending on the complexity of the issue. Our service advisors will give you an estimated timeframe when you check in.

Can I drive my Hyundai with the check engine light on?

If the light is solid, you can typically drive to a service appointment soon—but don't delay. If the light is flashing, pull over safely and call for assistance immediately. A flashing light indicates a serious problem that could damage your engine or catalytic converter.

Why should I choose a dealership over an independent shop for diagnostics?

Hyundai dealerships like Earnhardt Hyundai San Tan use factory diagnostic tools and employ technicians trained specifically on Hyundai vehicles. This means faster, more accurate diagnoses—and repairs done right the first time.