The notification affects trucks that were serviced after a prior recall.
The announcement comes as Ford looks to hasten work on a global overhaul of its operations.
Declining sales of passenger cars weighed down increases in other models.
The update to one of Ford's most popular models comes as it looks to turnaround slow sales.
The decision is part of a $11 billion restructuring effort.
Current Snap Inc. CFO Tim Stone will replace retiring CFO Bob Shanks.
The EPA said it takes "the potential issues seriously."
The move is part of a broader $11 billion global restructuring effort.
The industry is bracing to see whether Trump will impose tariffs on imports of vehicles and auto parts.
The company could challenge the market share of GM, Ford and Fiat Chrysler.
The departure will come as Ford continues work on a $11 billion restructuring plan.
Overall, the study showed a 4 percent improvement in vehicle dependability from 2018.
Ford told May that it may have to use alternatives sites outside of Britain.
He made the comments at the North American International Auto Show in Detroit.
The plan is aimed at achieving a 6 percent operating margin in Europe.