One problem related to wiring has been reported for the 2005 Ford Expedition. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Ford Expedition based on all problems reported for the 2005 Expedition.
The air conditioning unit is leaking excessive amounts of water under the carpet and the water is pooling under the rug and flowing into the channel where the wiring harness is located. This wiring harness does not look to be protected from water and it is a mater of time before the insulation on this wire breaks down and shorts out to the frame.