Read a good spark plug lately? We hope so, for your engine's sake. But spark plug reading—the traditional way to check your fuel mixture and monitor other vital conditions in the combustion chamber ...

Whether you know a lot about cars or nothing about them, it's never fun to see the check-engine light—also known as a malfunction indicator light (MIL). This is your car trying to tell you it has ...

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

It's a common misconception that modern fuel-injected engines are more immune to flooding than older carbureted motors. Given the right (or wrong) conditions, any internal combustion engine –- whether ...

Changing spark plugs is standard maintenance on gasoline-powered cars. While you could clean and reuse old ones, it's not ...

The most frequent “check engine light” fix noted in a recent report is to replace the catalytic converter, which costs an average $1,313. It should come as no surprise to anyone who’s been paying ...

The check engine light just came on with my 2014 Forester. At the same time, another warning light came on of a car with two zigzag lines behind it.