5 Common Check Engine Light Triggers
Your car is capable of informing you about possible problems in many ways. It may create strange noises, expel large plumes of exhaust smoke, or vibrate and shake. Each of these are signs of trouble and you ought to get the vehicle to an auto shop as soon as possible. However, those problematic symptoms may not be obvious to all. The check engine light, on the other hand, is a definitive indicator that your car needs service. If the light is ignored whatever problem that triggered it will grow worse, resulting in a much bigger repairs and a more expensive bill. So what triggers the light? In most cases it's a relatively small issue, but as mentioned they can grow worse, as noted by this first of five common check engine light issues.
Faulty Catalytic Converter
There's a reason it's important to have diagnostics ran as soon the check engine light comes on. If you find that the catalytic converter, one of the most expensive parts of a vehicle, is causing an error code, it's highly likely a much smaller issue that turned on the light long ago caused its demise. Instead of spending $1,000 on a new catalytic converter, you could have spent a few hundred on repair what likely caused it to fail, a bad sensor, if you had acted faster.
Bad MAF Sensor
The mass airflow sensor measures the amount of air going into the engine and calculates how much oxygen needs to be mixed with the gas for the proper air/fuel mix to make the motor run right. If the sensor is unable to properly do so, it will result in the burning of excessive gasoline, which will cause the light to come on. Burning excessive fuel can damage the catalytic converter.
Bad Oxygen Sensor
On the other end of the car is the oxygen sensor, which measures oxygen in the exhaust to also help dictate the air/fuel mixture. Again, if the sensor malfunction it will probably result in the use of too much fuel, causing a decrease in fuel efficiency and troubles with the catalytic converter.
Malfunctioning Spark Plugs
If the spark plugs aren't firing at the proper time, due to corrosion, dirt or other wear and tear, the engine will begin to run very rough and waste lots of gas. While you will likely notice the motor is not running right just by the way it sounds and responds, this issue will trigger the check engine light.
Cracked or Loose Gas Cap
It is important to always make sure you tighten the gas cap every time you fill up. A loose gas cap can cause the light to come on because fuel vapors will be able to evaporate through the filler hose. A broken or cracked gas cap will cause this as well.
When the check engine light illuminates make an appointment with your local auto shop right away so diagnostics and repairs can be performed. If you need check engine light repair in Charlotte head to Southend Auto Exchange. Our team of ASE certified technicians will have your car running smooth in no time. Anytime you need expert auto repair in Charlotte call Southend Auto Exchange at (704) 703-7912 and we'll be there to help!
Southend Auto Exchange Blog
Written and Published By MORBiZ
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