Some engines are difficult to repair, which is no good if they're also unreliable. What do mechanics say? What's the most difficult diesel to work on?

The partnership between Ford and Navistar International was once considered a model collaboration. The celebrated arrangement began in 1982 and saw International Truck and Engine Corporation (later ...

Ford's history of diesel-powered pickup trucks dates back to 1982 when the automaker partnered with International — which would later become Navistar — to build a new diesel engine. The first Power ...