One problem related to overdrive light on has been reported for the 2000 Ford Ranger. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Ford Ranger based on all problems reported for the 2000 Ranger.
Early morning, driving approx 40mph ,overdrive light started flashing and had a hard upshift. Took truck to dealer and ran diagnostic test on transmission . . . Front pump failed and burned clutches need to overhaul transmission. This work was covered under warranty by dealer.