A truck repair shop that disabled emission controls on nearly 100 vehicles has agreed to a settlement with the federal Environmental Protection Agency. The EPA said KC Performance Diesel, LLC violated ...

Your car's O2 sensor can cause rough running, bad mileage, and inspection nightmares. Can a quick clean save the day? Here's ...

The U.S. Department of Justice has ordered a recall of 600,000 Ram trucks as part of a settlement that directs engine maker Cummins Inc. to remedy environmental damage it caused when it illegally ...

President Trump announced a plan to weaken vehicle mileage rules for the auto industry.

Last month we began our discussion of emission systems by examining various crankcase and fuel vapor control devices, along with throttle and carburetion equipment aimed at reducing automotive exhaust ...

GM has issued a voluntary emissions recall for certain units of the 2021 to 2023 GMC Savana that may have been produced with an incorrect Vehicle Emissions Control Information (VECI) label. The recall ...

Emissions controls garner more hate than just about anything else in the automotive world. And this isn’t some fad hatred that will fade away. It was forged long ago in the underwhelming fires of the ...

GM has issued a voluntary emissions recall for certain units of the 2021 to 2023 Chevy Express that may have an incorrect Vehicle Emissions Control Information (VECI) label attached. The recall also ...

This article was originally featured on The Drive. The U.S. Environmental Protection Agency proposed Wednesday perhaps its most sweeping changes to vehicle emissions controls in its history, a ...

The Department of Justice has ordered a recall of 600,000 Ram trucks as part of a settlement that directs engine maker Cummins Inc. to remedy environmental damage it caused when it illegally installed ...

To most of us, emission control systems are some sort of "black art" devices that have been forced upon us to rob performance and ruin gas mileage, but that's really not the whole story. Air pollution ...

Fiat Chrysler saw similar consequences in 2019 for failing to disclose defeat devices used to make vehicle emission control systems function differently during emission testing. More than 100,000 ...