Diesel engines across agriculture, trucking and construction have been sidelined by a tiny part that was supposed to keep the air cleaner. After years of complaints about failure-prone diesel exhaust ...

EPA approved guidance allowing diesel manufacturers to replace urea quality sensors with NOx sensors in DEF systems. The agency said faulty DEF sensors are a significant source of warranty claims and ...

GM has reissued a service bulletin describing a fix for several possible problems found in several 2020 through 2024 Chevrolet models, including the Chevy Silverado pickup truck, Chevy Tahoe SUV and ...