How to Troubleshoot Check Engine Light Warning

The check engine light on your vehicle is something that may be cause for alarm, but should not force you into making rash decisions in regards to your auto. Make sure you don't overreact when your light does come on and do something that may cause even more problems. Instead, consider what could possibly be wrong.

Instructions

1. Consult your owner's manual for the vehicle. Here you will be able to find what the cause of the check engine light coming on may be. Determine if it is something that you are able to repair or correct such as a loose fuel cap on your auto, which is the most common problem. The owner's manual will list other possible problems as well.

2. Use the code on your check engine light to tell you what it is that is wrong with your car. A code will flash that is a two digit number to tell you what it is that is wrong with your car. This occurs when you turn your vehicle on but do not turn the car over there will be a series of flashes a pause and then a second series of flashes to tell you the number of what the problem is. Many of these codes are simple such as 13, which is a bad O2 sensor.

3. Notice a flashing of the check engine light on your car which could mean some of the following problems are happening. It could also mean the throttle position sensor, air temperature sensor or vehicle speed sensor.

4. Go to your dealership where you bought the car and ask them to look at it if you are not able to determine what the needs are for your auto. They should have the tools and the ability to get you a diagnostic on your vehicle and be able to determine what if anything is wrong with your car.