One problem related to engine shut off without warning has been reported for the 1999 Ford Windstar. The most recently reported issues are listed below.
Subject vehicle is a 1999 Ford Windstar van with 3. 8 engine; this vehicle has not been operational since July 15, 2007 due to stalling problem. After reaching operating temperature, it may stall at any time. At speeds above 40 mph you can maintain control of vehicle, but under 35 mph vehicle becomes difficult to control due to engine shutdown and loss of power steering and brake assist.