The problem could range from something minor (like a loose gas cap) to something serious (like a failing catalytic converter). Ignoring it can lead to further damage and potentially expensive repairs.
To find out the specific issue, you need to:
* Get the diagnostic trouble codes (DTCs): You can do this in a couple of ways:
* OBD-II scanner: This is the best option. You can buy a relatively inexpensive OBD-II scanner at most auto parts stores. Plug it into the car's OBD-II port (usually under the dashboard), and it will read the codes. The codes are numbers that correspond to specific problems.
* Auto parts store: Many auto parts stores will read the codes for free. Just take your car in, and they'll plug in their scanner.
* Research the DTCs: Once you have the codes, you can look them up online (many websites have databases of OBD-II codes) or in a repair manual for your specific vehicle. This will give you a better idea of what the problem might be.
* Address the problem: Based on the codes and your research, you can either try to fix the problem yourself (if you're mechanically inclined) or take your car to a mechanic for repairs.
Don't delay getting the codes read. Driving with the SES light on can potentially cause further damage to your engine and may even impact your emissions test if your area requires them.
