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 — ...

A 2004 Silverado loses power and triggers the check engine light. Follow the diagnostic process to uncover the real problem. ...

Car owners dread few things quite as much as a vehicle's "Check Engine" light. However, the dreaded signal doesn't always foretell a worst-case scenario for motorists. They can even help prevent ...

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 ...

When my check engine light came on recently, I decided to try the FIXD scanner to avoid an unnecessary mechanic visit. The device plugs into the OBD2 port and pairs with my phone via Bluetooth, giving ...

It may cost you more in the long run. You’re driving along and suddenly your check engine light goes on. But nothing seems to have changed with the way your car is running. It’s OK to let it go for a ...

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 ...

We began our deep dive into the history of on-board diagnostics last week. OBD began in earnest on the 1967 Volkswagen Type 3 ...