What Could Be Causing My Check Engine Light to Come On?

When your check engine light comes on your dash, you're almost guaranteed to be faced with troubles. The CE light is a way for your car to communicate that there is a serious issue at hand. Depending on the behavior of the light itself, some reasons behind check engine lights are more urgent than others. When this light comes on, you should contact an auto repair shop immediately to diagnose the problem using proper computer diagnostic equipment to pinpoint the issue. Here are some of the most common reasons why your check engine light may be on.

  1. Faulty Catalytic Converter. The catalytic converter is a piece in your vehicle's exhaust system that reduces harmful emissions by changing carbon monoxide and other hazardous gases into less harmful emissions. The cat rarely fails on its own, so it is best to have a professional check out your exhaust system.
  2. Loose Gas Cap. The gas cap is the best-case scenario when it comes to any check engine light. When your cap is loose, gas will evaporate through the opening, causing the light to glow. Luckily, this can be fixed with the turn of your wrist.
  3. Faulty Ignition Coil. A damaged coil means that your vehicle won't be able to provide the spark necessitated to make your internal combustion engine fire up. The coil can go bad for several reasons, but it can also wear out over time. These should be replaced every 100,000 under normal conditions.
  4. Bad Mass Airflow Sensor. The mass air flow sensor monitors incoming air and determines how much fuel to inject to ensure that the engine runs seamlessly. If the car's MAF sensor determines the sensor is malfunctioning, your vehicle will trigger the check engine light to turn on. Though it can be a simple and inexpensive fix, an undetected MAF problem can reduce your fuel efficiency by 10 to 25 percent.

Don't procrastinate on having diagnostics ran on your vehicle when the check engine light comes on. The problem will worsen, and your car could break down entirely. For the best check engine light repairs in West Babylon, NY, please be sure to call Cosmo's Service Center at 

(631) 888-5955 today!