One problem related to automatic transmission control module has been reported for the 2004 Ford F-250. The most recently reported issues are listed below.
2004 Ford f250 super duty king ranch. After reflash to repair an idle problem truck developed three very dangerous conditions. 1. Cruise stalled - going down hill at approx 55-58 the truck will stall without warning. No power steering or brakes. Reproducable on demand. 2. Downshift lockup - truck will lockup rear tires in excess of 30 feet if tow/haul mode is used. On first occasion it almost caused a major accident on highway, came within inches of a head on with a large dump truck while towing a boat. Reproducable on demand. 3. Coast stall. Intermittently stalls usually at off ramps after cruise has been released. Extremly dangerous to take offramps in such a large vehilce with no power.