One problem related to ignition coils failure has been reported for the 2002 Ford Expedition. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Ford Expedition based on all problems reported for the 2002 Expedition.
On 7/3/2007 I heard a loud banging sound and smelled gas coming from under my engine. When I had it towed to sioux falls Ford, they said a spark plug had blown out. When I asked if that was a factory defect, I was told that the plug may have been put in incorrectly. I have never had the spark plugs replaced, so I knew it was a factory plug, but the technician said that they had no way of knowing that. I spent $800 to have the it re-thread. 4 weeks later, a different spark plug did the same thing. At that time, they told me that they would check all of the spark plugs to ensure that they were tight. 4 weeks after that, the ignition coil needed to be replaced in that plug and the plug needed to be replaced. They claimed that their repairs had not caused this, but I feel like I have been getting the run-around on all of this simply because I am a woman.