Car repair, a review of the basics
Ignoring the problem could lead to engine failure or some other form of system failure, even if your car appears to be operating normally. The problem could be as simple as failing to replace your gas cap properly after a fill up or as complex as engine or transmission malfunction, so it is in your best interest to let the experts determine the source of the problem whenever your check engine light comes on. A certified repair technician has the knowledge and the access to equipment essential to a proper diagnosis of your problem. Examples of issues that demand a quick and proper diagnosis include sudden illumination of dashboard warning lights (such as the check engine light), emission failure, engine or transmission performance or steering and ride control malfunction. The diagnosis will include a scan test for stored trouble codes and a systems and components check to eliminate possible causes.