Cracked turbocharger shafts and bad injector caused oil/fuel leaks into new particulate exhaust burn-off device and resulted in tail pipe flames so far. Sales halted and 8.4K trucks already sold being recalled for reprogramming.
Background
Super Duty represents 40% of Ford’s franchise F-Series pickup line
F-Series 1 of Ford’s most profitable vehicles sold under such names as F-250 and F-350
Ford sued Navistar in Jan claiming supplier was not paying its fair share of warranty expenses on diesel engines
Navistar stopped producing engines until judge ordered automaker and supplier to try to resolve dispute