Q: A few weeks ago my 2001 Saturn’s “check engine” light came on. A friend told me to tighten the gas cap and it would make the light turn off. I did. About two weeks later, the light went out. Was it ...

If there's anything that can kill a driver's good mood, it's being out for a cruise, music blasting, and suddenly one of the lights on the dashboard illuminates. That said, a warning to check the fuel ...