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Check Engine Light Diagnostics in Sandy, UT

  • Gary Beardsley
  • May 9
  • 4 min read

You’re driving along, maybe humming your favorite tune, when suddenly that light appears on your dashboard. Yep, the check engine light. Whether you’re a total car newbie or the type who owns an OBD-II scanner "just in case," this little amber warning can stir up a whole lot of stress. But don’t worry—if you’re in Sandy, UT, or anywhere in the Salt Lake Valley, Gary Beardsley Automotive has you covered.

What Does the Check Engine Light Actually Mean?

It’s not just a fancy way for your car to say "something’s wrong." The check engine light is your car's way of tapping you on the shoulder to say, "Hey, I noticed something's off. Let’s talk."

There are generally two types of alerts:

  • Solid Light: A non-urgent issue. This typically means the problem isn’t critical right now—maybe a loose gas cap, minor emissions issue, or something affecting fuel efficiency, but not safety. You can usually finish your trip and schedule an inspection soon after. However, ignoring it for too long could allow a small issue to escalate into a bigger one.

  • Flashing Light: A serious and potentially dangerous issue. This often signals something severe, like an engine misfire, which can cause unburned fuel to be dumped into the exhaust system. That can overheat and damage the catalytic converter—a costly fix. When you see a flashing light, it’s best to pull over safely and arrange a tow or immediate diagnostic service.

Your vehicle uses an onboard diagnostic system (OBD-II) that tracks and monitors engine performance. When something falls outside the acceptable range, your car stores a trouble code and lights up that little engine symbol.

Common Reasons That Light Is On

Here are the usual suspects behind a check engine light:

  • Loose or faulty gas cap - (seriously, check it first!)This is one of the most common and easily fixable reasons your check engine light might come on. A loose cap allows fuel vapors to escape, disrupting the fuel system pressure and triggering the light.

  • Worn spark plugs or ignition coils - These are essential for igniting the air-fuel mixture in your engine. If they fail, your engine can misfire, which affects performance and can damage other components like the catalytic converter.

  • Oxygen sensor malfunction - This sensor monitors the oxygen levels in your exhaust to ensure the engine is burning fuel efficiently. A bad sensor can throw off your fuel-to-air ratio, reduce gas mileage, and cause higher emissions.

  • Faulty catalytic converter - This component helps reduce harmful emissions by converting toxic gases into safer ones. If it’s damaged or clogged, your vehicle may lose power, have reduced fuel economy, and fail an emissions test.

  • Mass airflow sensor issues - This sensor tells the computer how much air is entering the engine. If it fails, the car may run too rich or too lean, leading to poor fuel economy, rough idling, and potential stalling.

  • Evaporative emission control system leaks - Also called the EVAP system, it prevents fuel vapors from escaping into the atmosphere. A leak here, like from a cracked hose or faulty purge valve, can trip the check engine light without any obvious performance issues.

Sometimes, it’s a small fix. Other times? It could be your engine's way of crying for help.


Running Diagnostics

Why You Shouldn’t Ignore It

Sure, your car might seem to run fine even with the light on. But ignoring it could:

  • Costly engine damage

  • Harm to emissions systems

  • Failed inspections

  • Wasted fuel and poor performance

  • More expensive repairs later

That small code could represent a larger issue simmering beneath the hood. Don’t gamble with it. Today’s $100 fix could become tomorrow’s $1,000 overhaul if that warning light keeps blinking unchecked.


Harmful Emissions in Salt Lake. (Smog)

How We Diagnose the Problem at Beardsley Auto

At Gary Beardsley Automotive, we take the guesswork out of engine trouble. Our expert techs use high-end OBD-II scanners and diagnostics tools to read error codes and pinpoint the issue—learn more about our process on our Auto Diagnostics Services page.

We don’t just toss parts at the problem. We get the facts, explain your options, and guide you toward the most cost-effective, safe solution.

What Happens After the Diagnosis?

We walk you through everything we find—no pressure, no unnecessary repairs. Sometimes, the best move is sending you to a specialized shop that can do the work more affordably or efficiently.

Like Jeremy Peterson said in his 5-star review:

"An honest shop. They diagnosed the issue and gave me all the information, but he was willing to send me to a different shop for specialized care that would save me some money. They didn't have to do that, I greatly appreciated it though and will refer everyone I know in that are in that area to their shop."

That’s the Beardsley way: transparency, integrity, and community-first care.

Why Sandy Drivers Choose Gary Beardsley Auto

We’re not just another shop on the map. Locals trust us because:

  • We prioritize honest diagnostics

  • Our ASE-certified techs know their stuff

  • We value long-term relationships over quick fixes

Serving Sandy and the surrounding Salt Lake Valley, we’re your go-to for diagnostics you can actually trust.

FAQ: Check Engine Light Edition

Can I keep driving with the light on?

  • If it’s solid and your car feels fine, maybe. But get it checked soon.

Will the light go off on its own?

  • If the issue resolves, it might. But codes usually remain until cleared.

Can I clear the code myself?

  • Yes, if you have a scanner. But that doesn’t fix the root problem.

How much does a diagnostic usually cost?

  • It depends on the shop, but at Beardsley Auto, you’ll always get a fair, upfront price.

Call Now—Let’s Clear Things Up for Good

Your check engine light isn’t just a suggestion. It’s a message from your car asking for help. Let us take the mystery out of it—schedule a diagnostic with the trusted team at Gary Beardsley Automotive today.

Don’t wait. Drive with confidence—get the answers your car deserves.

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