Without a diagnostic tool, it's challenging to determine what is wrong with your car and whether to keep driving when a solid check engine light turns on.

We may receive a commission on purchases made from links. The check engine light is one of those dashboard warning lights drivers dread to see suddenly come on in the middle of driving. First-time car ...

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 — ...

There are few things more distracting when driving than a check engine light, or CEL. The CEL is a vague, catch-all light that indicates there is an error somewhere ...

A check engine light indicating a catalytic converter issue may also be caused by a faulty sensor or exhaust leak. Bringing your own parts to a repair shop can be problematic, as shops may charge more ...

When the check engine light comes on in a vehicle, it’s indicating that there is some issue with the car that should be checked out. It could be something minor, such as the gas cap not being screwed ...

A solid check engine light is a "look into this soon" nudge. A blinking one is different.

Forbes contributors publish independent expert analyses and insights. Jim Gorzelany is a veteran automotive journalist. This voice experience is generated by AI. Learn more. This voice experience is ...

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Think about the last time your car's check engine light came on. Most of us know better than to ignore it. That little light ...