One problem related to overdrive light on has been reported for the 2004 Ford Explorer Sport Trac. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Ford Explorer Sport Trac based on all problems reported for the 2004 Explorer Sport Trac.
During the acceleration from a stop light the vehicle would slip shifting from 2nd to 3rd. The overdrive off light then began flashing. This caused unexpected poor acceleration and in traffic could result in possibly being rear ended by traffic behind you. Dealer replaced transmission control assembly. $1400. Why should a 4 year old truck need such drastic service?.