Check Engine

Why Does My Check Engine Light Turn On?

1. Faulty Oxygen Sensors

A faulty oxygen sensor is a common cause of the check engine light. It affects how your engine manages the air-fuel mixture, which can lead to poor fuel economy, rough idling, and increased emissions. Replacing it early helps maintain performance and prevents further engine damage.

2. Loose or Damaged Gas Cap

A loose or damaged gas cap can trigger the check engine light, as it disrupts the fuel system’s pressure. If the cap is not sealed properly, it can cause fuel vapors to leak, affecting fuel efficiency and emissions. Simply tightening or replacing the cap can resolve the issue and help prevent further engine problems.

3. Engine Misfires or Faulty Spark Plugs

Engine misfires or faulty spark plugs can cause the check engine light to come on. Spark plugs play a crucial role in igniting the air-fuel mixture in the engine, and when they’re worn or damaged, it can lead to misfires, rough idling, or poor acceleration. Addressing spark plug issues promptly can improve engine performance, fuel efficiency, and prevent further damage to the engine components.

4. Catalytic Converter Needs to be Replaced.

Catalytic Converter Needs to be Replaced. If not replaced, your vehicle may not pass emissions test, reduced performance and fuel economy, and your car may run at a higher temperature.

5. Mass Airflow Sensor Needs to be Replaced.

Mass Airflow Sensor Needs to be Replaced. If not replaced, damage to O2 sensor, spark plugs, or catalytic converters may result, and a reduction in performance and fuel economy.

6. Spark Plugs or Wires Need to be Replaced.

Spark Plugs or Wires Need to be Replaced. If not replaced, you will experience poor performance (reduced power and fuel economy), and catalytic converter. ignition coils, and O2 sensors can become clogged.

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We are the Check Engine Light Diagnostic Experts! Don't Go Anywhere Else!

Is your check engine light on? We fix them! We have all of the diagnostic equipment, information, and trained technicians to troubleshoot and fix all check engine, TPMS, and ABS lights, and any other diagnostic problems.

Many critical problems can go unnoticed, and are extremely difficult for even a certified technician to pinpoint without the proper diagnostic tools. If your check-engine light is on, engine diagnostic services are the most efficient way to determine exactly why.

With built-in sensors, microchips, and processors, car diagnostic checks quickly and accurately allow us to find the problem areas in a car’s engine or elsewhere. The diagnostics test that we use for vehicles relies on a computer system that links to the vehicle’s computer processor and sensors that in turn, reports any problems or issues by means of error codes. On-board diagnostics, also known as(OBD), is an automotive term that refers to a vehicle’s self-diagnostic capability. These systems allow the vehicle owner and/or repair tech access to the status of the various vehicle subsystems.

If you’re seeing the check engine light, it’s time for a professional diagnostic. Our “Check Engine Diagnostics Near Me” service offers quick and accurate assessments of your vehicle’s engine system. Our experienced technicians use advanced tools to identify issues like faulty sensors, misfires, or exhaust problems, providing you with a clear solution. Don’t ignore the check engine light—get your car diagnosed today to prevent further damage and ensure it runs smoothly. Visit us for reliable, hassle-free diagnostics and get back on the road with confidence.

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We do it all from oil changes and tire rotations to transmission work and diesel engine repair. Check our Services page our give us a call to talk about your car.

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In addition to repairing tires and wheels we also sell new tires. You can check our inventory out by using our Tire Fitting Guide or by giving us a call.

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Check Engine Light On? Don’t Ignore It—Get A Diagnosis Today!

A glowing check engine light could mean anything from a loose gas cap to serious engine trouble. At Metric Motors, our advanced diagnostics pinpoint the issue quickly and accurately—saving you time, money, and stress.