One problem related to speedometer/odometer failure has been reported for the 2005 Ford Mustang. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Ford Mustang based on all problems reported for the 2005 Mustang.
Intermittent speedometer failure began at about 50k miles. Once the car stops and is restarted it seems to reset itself. Recently at 73k miles the oil pressure guage stopped working and has not worked for the past 2 months.