Ford is recalling about 206,000 Ford Freestar and Mercury Monterey models from the 2004-2005 model years.
The company said the torque converter output shaft could fail, which would cause a sudden loss of forward motion, possibly causing a crash.
Ford dealers will replace the converter free of charge when the recall begins in the second quarter of 2012.
Owners may contact Ford at 1-866-436-7332.
