A recently filed patent details a new GM cylinder deactivation system that appears to be heading to the next-gen V8 engines ...

The “check engine” light is the most annoying orange icon in America. Half the time the car feels fine, and the other half ...

Engine-room inspections are an important part of boat ownership and boat buying. Here are key things to look for. The post ...

Here are 2025's most popular questions and answers from The Journal's Car Doctor column, from rotating tires to oil changes.

Modern car batteries are typically sealed and maintenance-free, but extreme heat can shorten their lifespan. It is crucial ...

The “Check Engine” light is a car’s way of raising its hand to say, “Something’s off.” Sometimes it’s minor. Sometimes it’s your wallet’s worst day of the month (or year…). After two decades of ...

The engine is under-stressed, meaning it rarely operates at temperatures or pressures that might accelerate valve damage. Its conservative compression ratio and simple, carbureted or early fuel ...

At a time when vehicle diagnostics can demand a computer science degree, being able to get some insight into your engine health with nothing but a rag and a bit of know-how can be downright refreshing ...

There is so much going on with internal combustion engines (ICEs) these days, it can give you a headache just reading about them. That's why we do the research for you and then cram it into bite-size ...

Your car's dashboard symbols generally fall under one of two categories: specific indicators with a single clear meaning and broad warnings with multiple potential causes. Specific indicators like the ...

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 ...