Top Five Reasons Your Check Engine Light May Be On

By Product Expert | Posted in Tips & Tricks on Tuesday, June 21st, 2016 at 8:01 pm
top 5 reasons check engine light is on

Why is my Check Engine Light on?

When your check engine light comes on in your vehicle, we know it is usually accompanied with a stressed or nervous feeling and a pit in your stomach. What could be wrong? How much is this going to cost? Am I okay to drive with the light on? We know a million questions are flooding your mind and so we created this post to hopefully shed some light on your check engine light on your vehicle. Keep reading to check out the top five reasons your check engine light may be on.  

Quite simply, the check engine light is a signal from the car’s engine computer that something is wrong. Check engine lights come in orange, yellow or amber color depending on the manufacturer. If the light begins flashing, it indicates a more serious problem such as a misfire that can quickly overheat the catalytic converter. Here are the top five reasons your check engine light may be on.

Read More: Moritz Kia Services 

Oxygen Sensor Needs Replacing:

Your oxygen sensor measures the amount of unburned oxygen in your vehicle’s exhaust system. If you don’t have it replaced your engine will burn more fuel then needed, you will have a loss in fuel economy, and faulty sensors can cause damage to your spark plugs and catalytic converter.

Gas Cap is Loose, Damaged or Missing:

Your gas cap seals the fuel system and helps maintain pressure within the fuel tank. It also prevents gasoline fumes from being released into the atmosphere while you aren’t driving your car. If you don’t replace it you can lose fuel through evaporation.man checking vehicle diagnostics vehicle maintenance

Catalytic Converter Needs Replacing:

Your catalytic converter helps protect the environment by converting harmful carbon monoxide into carbon dioxide. If you don’t replace it, you vehicle will not pass an emissions test, you will experience reduced performance and fuel economy and your vehicle may run at a higher temperature.

Read More: How Often Should My Tires be Rotated? 

Mass Airflow Sensor Needs Replacing:

Your mass airflow sensor measures the amount of air entering the engine to determine how much fuel is needed to run your engine efficiently. If you don’t replace it, faulty sensors can cause damage to spark plugs, O2 sensors or catalytic converter and you will experience reduced performance and fuel economy.

Spark Plugs or Plug Wires Need Replacing:

Spark plugs ignite the fuel/air mixture in the combustion chamber of your vehicle. The spark plug wires deliver the spark from the ignition coil to the spark plugs. If you don’t replace it you will experience poor performance and reduced fuel economy and worn plugs can cause a clogged catalytic converter or damage to ignition coils and O2 sensors.

As you can see, if the check engine light is ignored it can cause a lot of problems for your vehicle and ultimately end up costing you more money. If you need servicing on your vehicle or have a check engine light on, then come to any of our Moritz Kia locations to have your vehicle serviced with us. Use our online tool to schedule an appointment at any of our three Moritz Kia locations throughout the Fort Worth area.

12 Responses to “Top Five Reasons Your Check Engine Light May Be On”

  1. kia pars and thats why

    cheeck engine light is on agin. had a new ignition put in went off and now back on had a senor replaced but it culd be tat again my mechanic said it might only use kia parts

  2. Darrell says:

    My check engine light is on, I just hade an oil chang,

  3. Check engine light just came on

  4. James says:

    Brand new Kia, it’s got 3094miles on it, check engine light is on and it’s not the gas cap…

  5. Edith Cooper says:

    I have a 2017 Kia Soul with 39,000 miles, just had oil change, checked gas cap and light is still on. Its not even 2 yrs old.

  6. Zoey Butler says:

    Nice article and information given in this article are very helpful for a person like me. I had no idea that mechanical errors in the oxygen sensor could cause the appearance of a check engine light in the vehicle. Ignoring the appearance of such warning light could have catastrophic effects on the performance of the vehicle. So, such mechanical errors should be repaired in time to prevent any major problem. You may like to visit https://techplusautomotive.com/services/computerized-engine-analysis/

  7. Richard says:

    TROLL.. this comment was nothing more than a TROLL trying to drive business to scare the consumer ~! Go see your KIA dealer ..

  8. Kaye says:

    2019 Kia Forte, check engine light came on at 1025 miles, brought it in and they said cyl 3 miss fired, they cleared the code and tested system and could not find any reason , and filed a claim with Kia, two days later at 1075 came back on again. Took it back to dealer and they want me to drive it like this for 2 weeks until next available appt. Have not even had the car 2 months.

  9. David Gaither says:

    Just had oil treatment done after 500 miles another oil change with treatment light still on.

  10. David Gaither says:

    Just had oil treatment done after 500 miles another oil change with treatment light still on.

  11. Donna says:

    2018 KIA Soul, 15k km. Check engine light just came on, 3 weeks after oil and regular maintenance appointment. NOT IMPRESSED. Dealer won’t schedule a maintenance call until a week from now because he is too busy with changing winter tires…. Seriously, I can’t drive my car.

  12. Albert says:

    i have a 2012 kia rio lx.my problem is,when i swicth the aircon the engine3 is kicking,what sahll i do?

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