A check engine light that returns after being reset means the underlying fault has not been repaired, only cleared from the ...

Diesel engines, for all their rugged usefulness, can be tremendously polluting. They produce more NOx — nitrogen oxides-based emissions – than gasoline-fed cars, as well as more particulates, aka soot ...

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 ...

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 ...

Here’s some good news for cash-strapped motorists: The average cost to repair a mechanical issue that’s indicated by the “check engine” light on a vehicle’s instrument panel dropped by 10 percent last ...