Modern vehicles are equipped with an onboard diagnostic system (OBD-II) that monitors various components of your car. When something isn't functioning correctly, the system triggers the check engine light and stores a diagnostic trouble code (DTC). These codes can point to issues with anything from the engine and transmission to the exhaust system or fuel system.
What Can Trip the Check Engine Light?
Common causes of a check engine light include:
- Loose or Damaged Gas Cap: A simple fix, but a loose gas cap can cause fuel vapors to leak, triggering the light.
- Oxygen Sensor Issues: The oxygen sensor monitors exhaust emissions. A malfunctioning sensor can affect engine performance and fuel efficiency.
- Catalytic Converter Problems: If the catalytic converter is failing, it could lead to decreased fuel economy and increased emissions.
- Faulty Spark Plugs: Worn-out spark plugs can cause misfires and affect engine performance.
Don't Ignore the Warning Light
Ignoring the check engine light can lead to more significant, costly problems over time. If the light is flashing, this indicates an urgent issue that requires immediate attention, such as an engine misfire.
It's best to have a professional diagnose the specific DTC using accurate testing equipment. This will pinpoint the problem, allowing a certified technician to recommend the proper repairs. Remember, addressing the issue sooner rather than later can save you from more expensive repairs down the road!
If your check engine light is on or you think you might have automotive problems, call Fox Run Auto in Northern Delaware at (302) 597-9205 or schedule your service appointment online.