Surprise Auto Repair

The 5 most common reasons your “Check Engine Light” is on

There is not too much worse than discovering your check engine light appearing out of nowhere and having no idea where it came from or why it appeared. Literally hundreds of things can trigger a check engine light appearing out of thin air. It can be something as simple as a loose gas cap, or something a lot more serious. From our stores, here are the 5 most common reasons we see on a regular basis and a brief description of how damaging they can be;

1) Evaporative System Leak or Fault - The evaporative system is the system that manages fuel vapor. This is a very complex system that has many components including valves and pumps as well as many miscellaneous seals and hoses.  One potential cause of this could be something as simple as a loose or damaged gas cap. However, some problems here are much more complex such as needing electronic diagnosis or repairs.

2) Damaged Catalytic Converter - Firstly, what is this? The catalytic converter is an environmental control device reducing pollution by changing carbon monoxide to less harmful carbon dioxide. Damage usually occurs from ignoring necessary maintenance and repairs. If not replaced, your vehicle won’t pass an emissions test, and there could be reduced fuel economy and performance which can have longer term effects on your vehicle.

3) Worn Spark Plugs and Wires - Spark plus are something you hear about pretty regularly in the car repair industry. But do you really know what it is they do? The wires and plugs deliver the spark that ignites the fuel inside cylinders of your car’s engine. If they aren’t working right, your engine will not perform at peak efficiency. If you choose to continue to ignore this problem can cause damage to other systems

4) Bad Mass Airflow Sensor - This part measures the amount of air coming into your engine to determine the proper fuel/air mixture. If you ignore this problem, it could lead to damage of other components in your vehicle.

5) Bad Oxygen Sensor -Oxygen sensors measure the amount of unburned oxygen in your exhaust. If left unattended, your car will burn up to 40 percent more fuel, and you could end up damaging other components.

So as you can see, the majority of times here, there is a potentially damaging problem that the longer you leave unattended, can put your vehicle into some major problems. Fact of the matter is, nowadays we tend to try push our vehicle further and further and not want to take care of it properly. Around the holidays, seeing a check engine light is the last thing you want to see. But until you get it checked out and find out the actual problem, we have no idea what is going on in there. It may be something simple, or it may be something that will end up SAVING you money in the long run if you get it taken care of in a timely manner. Give any of our 7 stores Valley wide a call if you have any questions regarding this blog or anything else auto related. We would be happy to help.

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