Re: Check Engine Light
A loose gas cap is would be the one you would hope for, but I have seen questions like this and then people go start replacing parts blindly or go and get the light turned off and think that fixed the problem. It the problem was just a one time glitch the light will turn off by itself after a few drive cycles. It is alwasy best to just pull the codes ASAP. If you wait too long one fault can cuase more codes to be stored and then it is harder to know what the real cause is. My daughter had me look at her car once, it was running rough and she said the CEL was on for a couple of months. I hooked up my code reader and there was a whole list of codes. After writing them down I cleared the codes and went for a drive. I barely got out of the drive way before the CEL came on and i pulled right over and pulled the codes again. this time I just got one code for a misfire. I checked and found a bad spark plug wire. After replacing the wires all was good and no other codes.