Engine Diagnostics · Reno, NV

Check-Engine Light On? Get the Real Answer, Not a Guess.

A parts-store code reader tells you a code. Professional diagnostics tell you the cause. At Reno Auto Works, our technicians trace the actual problem behind your check-engine light — then explain what's wrong, how urgent it is, and what fixing it will take, before any work begins.

Schedule Service Call 775-384-2098

When to Get Your Check-Engine Light Diagnosed

Some warning lights are minor. Some aren't. These signs mean it's time for a professional diagnostic:

The check-engine light just came on — steady or blinking
A blinking check-engine light (stop driving and call us — this can mean active engine damage)
The light is on and the engine runs rough, hesitates, or stalls
You've lost power or fuel economy has suddenly dropped
The light came back after someone “cleared the code”
You need the light resolved to pass a Nevada emissions test

Why You Shouldn't Just Clear the Code

Erasing a code doesn't erase the problem. A small issue — a failing sensor, a vacuum leak, a misfire — can quietly damage expensive components like your catalytic converter while the light is ignored. What starts as a $200 repair can grow into a $2,000 one.

A proper diagnosis now is almost always cheaper than a bigger repair later.

What's Included

What Our Engine Diagnostic Includes

Diagnostics is detective work. Here's what you're actually paying for when we diagnose your vehicle:

Full computer scan of your vehicle's onboard systems — not just the one code
Freeze-frame data review to see the conditions when the fault occurred
Physical inspection and testing of the suspect components — sensors, wiring, vacuum lines
Verification testing so we're confirming the cause, not guessing from a chart
A plain-English explanation of what we found, what it means, and your options
A clear estimate for the repair — approved by you before any work starts

Why Choose Reno Auto Works

Anyone can plug in a scanner. The difference is what happens next — and how honestly it's explained to you.

Honest recommendations — we tell you what's urgent, what can wait, and what doesn't need fixing.
Plain-English explanations — you'll understand the problem before you approve the repair.
Warranty-repair assistance — most extended warranties accepted, with claim-handling help.
Free 65-point inspection with qualifying service — know your vehicle's real condition.
Hablamos español — Spanish-speaking assistance available.

Local to Reno & Sparks

We're on Vassar Street in central Reno, minutes from Midtown and the airport, and an easy drive from Sparks. If your light is on, don't wait for it to become a bigger bill — come see us.

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FAQ

Check-Engine Light Questions

Is it safe to drive with the check-engine light on?

A steady light usually means you can drive carefully to the shop, but shouldn't ignore it. A blinking light means stop driving and call us at 775-384-2098 — blinking typically indicates a misfire that can damage your catalytic converter.

Why not just use a free parts-store code scan?

A free scan reads the code, but a code is a symptom, not a diagnosis. One code can have a dozen possible causes. We test to confirm the actual cause, so you pay to fix the real problem once — not to replace parts on a guess.

Can a check-engine light affect my Nevada emissions test?

Yes. In Washoe County, an illuminated check-engine light typically means an emissions test failure. We diagnose and repair the cause so your vehicle is ready to pass.

How much does a diagnostic cost?

It depends on the issue and how deep the testing needs to go. Call 775-384-2098 and describe what's happening — we'll give you a straight answer about diagnostic cost before you book.

Related Services

Stop Wondering What That Light Means.

Bring it in — we'll find the real cause, explain it clearly, and you decide what happens next.

Schedule Service Call 775-384-2098 Get Directions