A recently filed patent details a new GM cylinder deactivation system that appears to be heading to the next-gen V8 engines coming in the 2027. This new GM cylinder deactivation system might replace ...

General Motors is quietly working on a new way to make its traditional V-8 engines more efficient, and the latest development could signal a big shift in how big engines sip fuel without giving up ...

As a result of production constraints and logistics issues stemming from the COVID-19 pandemic, GM decided to remove certain features from a number of its production vehicles. One of the most notable ...

During the COVID-19 pandemic, supply chain disruptions and semiconductor shortages forced automakers to make some tough decisions. For GM, one of the compromises was the removal of Dynamic Fuel ...

[Stay on top of transportation news: Get TTNews in your inbox.] Navistar Inc. announced it intends to produce a zero-emission longhaul truck using fuel cell systems supplied by General Motors and will ...

Add "semiconductor chips," well, a major, world-wide shortage of the microdevices and the negative impact it's having on the fullsize-pickup market, to the list of challenges that U.S. truck ...

Automotive engine technology has come a long way since Carl Benz put a one-cylinder 2/3 horsepower engine on the Patent Motorwagen in the late 19th century. Modern engines are cleaner-burning, highly ...

General Motors and Honda say they have started commercialised hydrogen fuel cell production at their 50-50 joint venture production facility, Fuel Cell System Manufacturing LLC (FCSM), in Michigan, US ...

Question:I own a 2010 Chevy 1500 Silverado with a flex-fuel 5.3-liter Vortec V-8. The motor has an Active Fuel Management system that deactivates from V-8 to V-4 under certain conditions. This is my ...

The 5.3-liter V8 Ecotec3 might seem like the stepchild of the General Motors family, especially with the LS series of engines around, but it's a winner in its own right. This naturally aspirated ...