Some cynics believe the "Check Engine" light was invented to get vehicle owners to schedule more visits to the dealer for service. Some cars, after all, seem to have such a sensitive "Check Engine ...

You’re driving along in your car or truck and suddenly a yellow light illuminates on your dash telling you to check or service your engine. If you’re like most car owners, you have little idea ...

However, the law requires all cars since 1991 (1988 in California) to have an emission-controlling on-board diagnostics (OBD) system and a check engine warning light to remind drivers of possible ...

The Check Engine light is a conversation topic that I’ll encounter as a mechanic several times in an average week. Sometimes it’s when a customer wonders why it didn’t come on to inform them ...