One problem related to transfer case has been reported for the 2008 Ford Fusion. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Ford Fusion based on all problems reported for the 2008 Fusion.
Ptu (transfer case) is leaking out of vent tube. Because the ptu oil is not serviceable (no drain plug) the oil has degraded and turned into a thick tar like substance clogging up the unit. Now unit makes whining noise during acceleration destroying the gears.