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Seeing the check engine light come on can be stressful, especially when you’re not sure what it means. Sometimes the problem is minor, but in other cases, the warning light can indicate an issue that needs immediate attention.

If your check engine light has appeared while driving around Kamloops, don’t ignore it. Bring your vehicle in to Advance Auto Service and have your vehicle thoroughly checked. This can help identify any problems early and potentially prevent a more expensive repair.

1. A Loose or Damaged Gas Cap

One of the simplest reasons a check engine light can appear is a loose, damaged or missing gas cap. Your vehicle’s fuel system is designed to maintain a specific pressure, and a problem with the gas cap can trigger the warning light.

If the light comes on shortly after filling your tank, check that the gas cap is properly tightened. If the light remains on, it’s a good idea to have your vehicle checked.

2. A Failing Oxygen Sensor

Your oxygen sensor monitors the amount of oxygen in your vehicle’s exhaust and helps the engine maintain the correct air-fuel mixture.

A failing oxygen sensor can affect fuel efficiency and engine performance. Replacing a faulty sensor can help your engine run more efficiently and prevent additional problems.

3. Problems With the Catalytic Converter

The catalytic converter helps reduce harmful emissions from your vehicle. When it isn’t functioning properly, you may notice reduced engine performance, poor fuel economy or an illuminated check engine light.

Ignoring a catalytic converter problem can potentially lead to more extensive and expensive repairs.

4. A Faulty Spark Plug or Ignition Component

Spark plugs and other ignition components are essential for your engine to operate properly. A problem can cause your vehicle to misfire, shake, hesitate or struggle to accelerate.

If your check engine light is accompanied by rough running or poor performance, professional engine diagnostics can help determine the cause.

OBD2 scanner in hand, car diagnostic tool and code reader to check engine light, read and clear DTCs, view live data and voltage, automotive repair and maintenance

5. Mass Airflow Sensor Problems

The mass airflow sensor measures the amount of air entering your engine. If it isn’t working correctly, your vehicle may experience poor acceleration, reduced fuel economy or rough idling.

Cleaning or replacing the sensor may be necessary, depending on the underlying problem.

6. Issues With the Fuel System

Problems with fuel injectors, fuel pressure or other components can trigger the check engine light. You may also notice reduced performance, difficulty starting or poor fuel economy.

Because fuel system problems can have several possible causes, professional vehicle diagnostics in Kamloops can help pinpoint the issue.

7. Electrical or Computer-Related Problems

Modern vehicles rely on numerous electronic systems and computer-controlled components. A problem with a sensor, wiring or another electrical component can cause the check engine light to appear.

A professional diagnostic scan can identify the trouble code and help determine the cause of the warning.

What Should You Do When the Check Engine Light Comes On?

The first step is to pay attention to how your vehicle is behaving.

If the check engine light is flashing, your vehicle is running very poorly, or you notice unusual noises, smoke or a significant loss of power, stop driving when it is safe to do so and have the vehicle assessed.

If the light is solid and your vehicle seems to be operating normally, you can continue to drive but we recommend you contact us to schedule a diagnostic appointment rather than ignoring it. Continuing to drive with an unresolved problem can sometimes turn a relatively simple repair into a more expensive one.

Professional Auto Diagnostics in Kamloops

At Advance Auto Service, our experienced technicians can help diagnose check engine lights and other vehicle problems.

Professional car diagnostics in Kamloops can identify potential issues and help determine the appropriate repair.

Don’t guess at what’s causing your warning light or simply hope it disappears.

Is your check engine light on? Contact Advance Auto Service or call 250 372 3222 today to schedule a professional vehicle diagnostic and find out what’s causing the warning before a small problem becomes a bigger repair.