FAQs

  • Your check engine light can come on for many reasons, ranging from minor issues to serious problems. Some of the most common causes include:

    • Loose or Faulty Gas Cap – A loose or damaged gas cap can trigger the light.

    • Oxygen Sensor Failure – A faulty O2 sensor affects fuel efficiency and emissions.

    • Catalytic Converter Issues – A failing catalytic converter can impact performance and emissions.

    • Faulty Spark Plugs or Ignition Coils – These can cause misfires and rough engine performance.

    • Mass Airflow Sensor Problems – This sensor helps regulate fuel and air intake, affecting engine efficiency.

    At STW Auto Care, our ASE-certified technicians use advanced diagnostics to quickly identify the issue and provide the right solution. If your check engine light is on, don’t ignore it—bring your vehicle in for a professional inspection! 🚗🔧

  • If your check engine light comes on, here’s what you should do:

    1. Check for a Loose Gas Cap – A loose or damaged gas cap can trigger the light. Tighten it and see if the light turns off after a few drives.

    2. Observe Vehicle Performance – If your car is running normally, it may be a minor issue, but it’s still best to have it checked.

    3. Flashing Light? Pull Over! – A flashing check engine light means a serious issue, like an engine misfire, which can cause damage. Stop driving and seek assistance immediately.

    4. Schedule a Diagnostic Check – The safest option is to have a professional diagnostic test to pinpoint the exact problem.

    STW’s ASE-certified technicians will quickly diagnose the issue and provide reliable solutions to keep you safely on the road. Don't ignore the light!

  • It depends on the severity of the issue. If the check engine light is solid and your car is running normally, it may not be an emergency, but you still NEED to get it checked soon to prevent further damage.

    However, if the light is flashing, it means a serious problem—like an engine misfire—that can cause major damage or even lead to a breakdown. In this case, pull over safely and avoid driving until the issue is diagnosed.

WHY A CHECK ENGINE LIGHT BEING ON IS A URGENT ISSUE!

Your check engine light is your vehicle’s way of telling you something isn’t right. While it may be a minor issue, it could also indicate a more serious problem that, if left unchecked, could lead to costly repairs or even engine failure.

  • Solid Check Engine Light – This usually signals a non-urgent issue, such as a faulty sensor or emissions problem. While your car may still drive normally, delaying a diagnosis can lead to reduced performance and efficiency.

  • Flashing Check Engine Light – This indicates a severe issue, such as an engine misfire, which can cause significant damage. If your check engine light is flashing, pull over immediately and avoid driving until the problem is diagnosed.

Your check engine light is more than just a warning—it’s your vehicle’s built-in alert system signaling a potential issue that needs attention. Ignoring it can lead to bigger, more expensive problems down the road. Here’s why you should get it inspected as soon as possible:

1. Prevent Costly Repairs

What starts as a minor issue, like a faulty sensor or a loose gas cap, can turn into a major repair if left unaddressed. A quick diagnostic test can save you money in the long run.

2. Avoid Engine Damage

A flashing check engine light means your engine is in trouble. Driving with a misfire or failing component can lead to catastrophic engine failure, leaving you stranded and with costly repairs.

3. Maintain Fuel Efficiency

Many check engine light issues, like oxygen sensor failures or fuel system problems, can hurt your gas mileage, making your vehicle less efficient and costing you more at the pump.

4. Prevent Breakdowns

Some issues may seem small at first but can worsen over time. Avoid unexpected breakdowns by getting your vehicle inspected as soon as the check engine light comes on.

5. Ensure Your Safety

Certain check engine light issues can affect your vehicle’s performance, emissions, and overall drivability. Don’t take the risk—your safety and the safety of others on the road depend on a well-functioning vehicle.