The 6.4 liter Navistar engine (above) is not included in the lawsuits.

A buddy of mine used to be a service manager at one of the country’s largest Ford dealerships. “The PowerStroke diesels built by Navistar,” he used to tell me, “will put my kids through college.” He was the first to advise people against buying anything with the Navistar-sourced 6.0 liter (or later, 6.4 liter) diesel engine, which has already been the subject of litigation between Ford and Navistar. Owners of Navistar-engined vehicles apparently agree with Ford, and have filed suit against Navistar in California, Utah, Arkansas, Tennessee and Mississippi. The plaintiff in the lawsuit is seeking class-action status, based on the fact that Navistar knowingly built engines with design and manufacturing defects. The lawsuit covers 6.0 liter diesel engines used in Ford trucks between 2003 and 2007, and does not (yet) include 6.4 liter Navistar engined vehicles.

The relationship between Ford and Navistar turned ugly in 2007, when Ford accused Navistar of building defective engines that had exorbitant warranty costs. Navistar counter-sued Ford, alleging breach of contract because Ford had begun work on their own diesel engine (the much improved 6.7 liter Scorpion engine, now available in Ford trucks). Ford and Navistar agreed to shake hands and part company (except for a few ongoing joint ventures) in 2009.

Source: Left Lane News