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Winterization Special
Come in for any oil change service, and receive a complimentary vehicle inspection that includes a tire ... [More] check, wiper and fluids check, and heater operation check!

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$49.95 Full Synthetic Oil Change
We are offering all new customers a one time oil change special offer just to get to know us. Includes ... [More] Digital Health Inspection! Present this coupon and receive a complete check that includes: Full Synthetic Oil and Filter Change (up to 6 qts), 40-Point Vehicle Inspection which includes: Check Antifreeze and all fluids, Brake Pad condition check, Check Exhaust System, Check Lights, Test Battery and charging system, and more! Call store for details, and schedule today! Offer valid for first time customers only. *Only available at participating locations ... [Less]
$149 Full-Synthetic
4-Pack Oil Change with 4 Tire Rotations
Maintenance Card Includes 4 premium full-synthetic oil change services with 40 point inspection along ... [More] with 4 tire rotations. Includes up to 6 qts of oil and NAPA Gold oil filter. Regular price $175. See store for more details. Some conditions may apply. Not valid with any other offer or special pricing. *Only available at participating locations ... [Less]

Check Engine Light Diagnostics in Colorado

One of the most common and least understood indicator lights on a vehicle dashboard is the check engine light. This dashboard light, known in the car industry as the malfunction indicator lamp (MIL), serves as a general indicator sent by the vehicle's engine computer that something is not correct. It could be a minor problem the engine computer is reporting, like a bad gas cap that hasn't been securely applied. It can also mean that something is seriously wrong with your vehicle's engine, like a misfiring engine. In order to fully diagnose the root cause of the issue, you’ll need trustworthy check engine light diagnostics in Colorado for your vehicle.

You shouldn't avoid this light. Instead, when it activates, you should stop by EAS Tire & Auto to allow one of our expert technicians to determine the problem and offer solutions to repair the problem. Once the issue is resolved, the engine light can be turned off. Our full-service auto shop has all of the equipment and technology needed to decipher the codes from your vehicle's computer that will explain why the check engine light came on in the first place.

These check engine lights can vary by vehicle manufacturer, with some illuminating in orange, yellow, or amber. A flashing check engine light typically alerts the driver to a more severe issue with the engine, such as a misfire that could ultimately result in overheating the vehicle's catalytic converter. Catalytic converters are devices designed to reduce emissions from cars by running at high temperatures. But if they become faulty, these converters can pose a fire risk.

Common Reasons a Check Engine Light Comes On
Beyond the more obvious alert of a flashing check engine light indicating something serious, there are many other reasons that a check engine light comes on. And those reasons can vary between minor and major.

When the check engine light comes on, the vehicle's engine computer sends a code that identifies what the problem is that triggered the light. The most common reasons include issues with the following:

    • Catalytic converter
    • Oxygen sensor
    • Ignition coil and spark plugs
    • Mass airflow sensor
    • Fuel cap
    • Evaporative emissions (EVAP) canister purge control valve
    • Fuel Injector
    • Thermostat
    • Powertrain control module (PCM)

It is possible that when the check engine light comes on, there is nothing wrong with the vehicle. This can happen at times if there is a sudden change in temperature or humidity, and the light typically goes off by itself in a short while. However, this is not the typical reason for the illumination of this dashboard warning system, so it is essential not to ignore it. Our check engine light diagnostics in Colorado are accurate and fast, so we can help you discover what’s wrong with your vehicle quickly.

How We Identify the Engine Code That Triggered the Check Engine Light
When the check engine light illuminates on the dashboard, this is more than just a
reminder that your vehicle needs routine service. This is an alert from your vehicle's engine computer that something is not correct.

At EAS Tire & Auto, our technicians use sophisticated technology to identify the code or codes sent by the vehicle's engine computer. First, they use code readers that connect to the vehicle's onboard diagnostic port to retrieve the signal. Once they identify the code, they can then diagnose the issue that triggered the check engine light in the first place. They then can resolve the issue through the repair or replacement of defective
parts—all thanks to our quality check engine light diagnostics in Colorado.

An experienced mechanic can also determine if the check engine code sent is considered a "false flag" or an incorrect indication of a problem. For example, sometimes, the vehicle's engine computer sends an incorrect code if there is a problem with the electrical wiring that connects a component to the engine. In that case, the part doesn't have to be replaced, but the wiring may need to be repaired.

Keep an Eye Out for This Common False Flag
In some cases, the check engine light may come on if a gas cap is not tightened correctly. A loose cap will send an error code to the car's computer, suggesting there is a leak in the vehicle's vapor recovery system. While this is an integral part of a vehicle's emission system, the code may just be a loose fuel cap that allows air into the system. Once you tighten the cap, you can continue driving. If that is the issue, the check engine light should turn off after some time.

Schedule Your Check Engine Light Diagnostics in Colorado
If your vehicle’s check engine light has activated and remained illuminated, then reach out to our team here at EAS Tire & Auto. You can contact a location near you by phone or by booking your appointment online now.

Mon - Fri: 7:00 AM - 6:00 PM