It glows on your car’s dashboard and instantly ignites terror and loathing in the hearts and wallets of drivers; the dreaded “Check Engine” warning light. For ...

While your check engine light is obviously meant for engine issues, it can often give you clues to problems in other parts of ...

Today’s cars and trucks are literally rolling test beds of technology, which has tended to make the days of the so-called shade tree mechanic and eyeball diagnoses of what ails a given model a distant ...

Onboard diagnostics (OBD) systems have been around since the 1980s and were developed to help limit harmful automotive exhaust emissions. Between 1988 and 1995, U.S.-built vehicles came with what's ...

The costs of buying a new or used car have climbed in recent years, and so has the average repair bill. If a vehicle purchase or major repair isn’t in the cards (or budget), maintaining the health of ...

When your vehicle's check engine light (CEL) comes on, it's often a sign that something needs attention. But with over 20,000 parts working together in your car — many important for normal operation — ...