The rear height sensor is above the differential and in front of the spare tire. The front one is supposed to be behind the left front tire (but I can't confirm that).
It's just below the left headlight
there are 4 different ones i know that the two back ones are located almost under the back passengers.
where is located ford expedition 1999 relays
Those are the oxygen sensors in the exhaust above the catalytic converters.
The height of the 2012 Ford Expedition is 6 ft. 5.2 in. (77.2 in.).
The height of the 2005 Ford Expedition is 6 ft. 4.7 in. (76.7 in.).
The height of the 2003 Ford Expedition is 6 ft. 5.6 in. (77.6 in.).
The height of the 2010 Ford Expedition is 6 ft. 5.2 in. (77.2 in.).
The height of the 2009 Ford Expedition is 6 ft. 5.2 in. (77.2 in.).
The height of the 2007 Ford Expedition is 6 ft. 5.2 in. (77.2 in.).
The height of the 2006 Ford Expedition is 6 ft. 4.7 in. (76.7 in.).
The height of the 2002 Ford Expedition is 6 ft. 4.5 in. (76.5 in.).