Ford and its long-time diesel engine supplier Navistar have been bickering through their respective lawyers for the better part of the last two years. Ford has accused Navistar of building ...

Its diesel production goes back to the early 1980s, but the company established its Power Stroke division of diesel engines in collaboration with Navistar International in 1994. Despite being ...

The relationship had been one of give and take – Navistar giving engines (most recently diesel ones for Ford's heavy-duty pickups), Ford taking the motors and in turn giving cash to its supplier ...

"It's a fundamental shift," Ciesielski added. It's also a fundamental shift from then-Navistar's ill-fated fully EGR MaxxForce engines that hit the market in time for Greenhouse Gas 2010 regulations.

Ford began installing 7.3-liter diesel engines, developed in conjunction with Navistar International, in its trucks in 1988.