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Vehicle Diagnostic

Is your car doing something it’s not supposed to do? Or not doing something it is supposed to do? A car diagnostic test is the best place to start.

Not sure what’s wrong with your car? One of our certified mechanics can perform a quick car diagnostic test and return your peace of mind.

A Car Diagnostic Test includes:

  • Visual inspection
  • Testing on-board computer with scan tool
  • Analysis of diagnostic trouble code(s) (DTC)
  • Service bulletin research
  • Test drive (if needed)
  • Pinpoint testing
  • Final component diagnosis
  • Estimate for repair
  • Complimentary Vehicle Inspection

We promise to stand by our diagnosis and offer a 2-year/24,000-mile warranty on all auto repairs performed at our locations.

We use top-of-the-line equipment and have access to the best automotive reference materials to guarantee your car is fixed right the first time.

Car Diagnostic Test

$159.00

When scheduling a visit online, describe your vehicle’s symptoms in the “I’m Not Sure…” section.

Schedule Your Visit

Check Engine Light

$5 OFF

Present code COUP1012 at checkout to redeem offer.

Here are a few examples of issues that require a car diagnostic test:

  • Failed emissions test
  • Windshield wipers not working
  • Horn not working
  • Reduced fuel economy
  • Unusual noise when driving over bumps or when turning
  • Illuminated check engine light or other dashboard warning light

Cars manufactured after the mid-1990s have on-board diagnostic equipment that communicates with electronic sensors all over your vehicle. If the sensors detect anything wrong or out of the ordinary, it sends a signal that activates a warning light on your dashboard.

An illuminated check engine light is the most common reason our customers need a diagnostic test. A check engine light can indicate many different issues ranging from a loose gas cap to serious engine failure. Our ASE Certified Technicians have the tools and training needed to find out if your check engine light is a quick fix or the sign of a larger issue.

Why don’t you offer a diagnostic test for free?

Many auto parts stores and some mechanic shops offer a free car diagnostic test. You can also buy an OBD II scanner and do it yourself. However, these “free” options often end up costing you more than our diagnostic service. Here’s why:

Any free diagnostic test only includes pulling the vehicle’s trouble codes from the computer and guessing what the underlying problem might be. A car diagnostic tool cannot determine the root cause of the problem—it only shows where the problem might be.

To get the most accurate diagnosis, you need to combine the read-outs from the computer with human ingenuity—particularly a trained, experienced automotive technician.

During our full diagnostic service, our technicians take the time to thoroughly test your vehicle and accurately determine the true cause of your vehicle’s problem‚ helping you avoid unnecessary repairs.

How long does a car diagnostic take?

As a standalone service, we estimate that a car diagnostic test will take 30–90 minutes to complete.

What causes the check engine light to come on?

Here are some common issues that cause lights on your dashboard to come on:

  • Loose gas cap
  • Faulty oxygen sensor
  • Incorrect fuel-to-air ratio
  • Issues with the spark plugs or ignition coils
  • Cylinder misfires
  • Problems with the catalytic converter
  • Bad mass airflow sensor
  • Excessive gas consumption or release of air pollutants

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

Generally, it safe to continue driving your car with the check engine light on, although we recommend getting it checked out as soon as possible. However, if the check engine light is flashing or is red instead of orange, the issue is more serious and you should pull over immediately.

What issues are not included in a diagnostic?

Some vehicle issues are not covered by our general diagnostic test and will need a more specific service. For example, if you are having issues with your braking system, we will recommend our hands-on brake inspection. Does your vehicle have a fluid leak? We’ll need to perform an engine clean and degrease service first to find where the leak is coming from. If you’re unsure of what you need, give us a call or leave a note when you schedule your appointment online.

Why Choose Virginia Tire & Auto?

We’re 100% committed to making sure you’re 100% satisfied.

We’ve spent more than 45 years doing things the right way, and that’s why part of our culture is to make sure you’re in the most friendly, comfortable and honest environment possible. It’s also why our warranty not only covers all our services but will also be honored at all our locations, too.

Our Complete Warranty

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