San Francisco European Auto Repair

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Check Engine Lights & What They Mean

The check engine light is a bright light on your dashboard that you can’t miss. Many drivers make the mistake of ignoring or waiting too long to repair this yellow or orange warning signal. The warning symbol can indicate a minor problem, but it can also symbolize grave danger concerning your engine. And we can promise you that engine repairs are costly enough to make your head spin.


It can be difficult to accurately diagnose a check engine light without the right tools and expertise. At our shop, we can pinpoint the problem using the latest scan tools. Our experienced technicians can then use the trouble code to dig deeper into the problem. 


Your car motor has many sensors that relay information to the onboard computer. When it detects a missing, damaged, or malfunctioning component, your check engine light will illuminate or flash. It can tell anything from a loose fuel cap to a clogged catalytic converter.  


Here are some of the most common explanations for a lit check engine light:

  • Loose or Damaged Fuel Lid
  • Faulty Oxygen Sensor
  • Failing Mass Airflow Sensor
  • Worn Spark Plug/Ignition Coil Problems
  • Clogged Catalytic Converter
  • Vacuum Leak
  • Thermostat Failure
  • … and more others.

While your check engine light can mean something as little as a loose gas cap, it should never be ignored. In the case that it is an engine problem, the damage can spread rapidly. Some people can use scanners at home, but you still need an experienced and reliable technician to handle the check engine-related repair.  


If you're looking for dependable check engine light repairs, bring your car to International Sports Motor today!