Two problems related to differential unit have been reported for the 2003 Ford Expedition. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Ford Expedition based on all problems reported for the 2003 Expedition.
The transmission has failed twice in my Ford explorer, first at about 2500 and now, after a rebuilt engine was installed, at 205,000. As well, I have had differential problems, moon roof issues, paint issues, cracked head, etc.
Humming noise from front differentials. Spring required to be added to front differential. Rear differential also had to be replaced due to parts missing from factory according to the dealer. All this happen within 2,000 miles of purchase on my 2003 Ford Expedition.