Ford Power Stroke's Shaky Future

Larry Stewart | September 28, 2010

Ford sued Navistar, supplier of diesel engines for SuperDuty trucks, in late January, claiming that Navistar hadn't shouldered its share of engine warranty expense and that it had improperly raised prices. Navistar, parent company to International Truck and Engine, responded by threatening to idle the Indianapolis plant where it makes the 6.4-liter diesel PowerStroke and ceasing shipments to Ford's Louisville Super-Duty plant.

An Oakland County, Mich., Circuit Court judge subsequently issued a 30-day temporary restraining order that required Navistar to resume shipments. Ford is seeking an injunction to extend that requirement until resolution of the warranty suit.

The popular Super-Duty trucks comprise about 40 percent of Ford's F -Series truck sales and are profitable products. The struggling No. 2 U.S. auto maker launched a redesigned SuperDuty line this year.