One problem related to o2 sensor 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.
I bought my 2005 Ford Expedition in March 2007 with 21k miles on it. I have had to replace 2 different injectors in 16 months because the vehicle will start cutting back and acting like it wants to cut off when it stops at a light . The most recent replacement came when I drove it 5 miles from home and it jerked continuously the entire inside of the vehicle smelled like gas very strongly as well as the exhaust. The truck stays parked most of the time because im too scared to drive it and its a gas hog!!!!!! the replacement of the injectors are not cheap!!!! the inside lights will come on and go off at anytime for no reason. I tap the brakes and they come on, I roll the window up or down and they come on. I have also had to replace the battery due to this happening even when the truck has been parked for hours. I have replaced the oxygen sensor and a coli pack. Its never ending and I feel like I should not have to continue to replace these things when I am obviously not the only one with this problem. Ford needs to step up and take responsibility for their crappy products. I have 5 more years @ $515 per month to pay for this piece of crap!!!!!!!!!!!!.