Ford has not yet released a remedy for the issue. Impacted owners will receive letters alerting them to the problem starting July 14.

Dearborn, Michigan-based Ford has issue 89 recalls with the NHTSA so far this year, impacting more than 5 million vehicles, according to the federal agency's recall records. The latest fuel pump-related recall follows a similar recall in January, involving 295,449 diesel-engine trucks with high-pressure fuel pumps.