Where are the spark plugs located on a 1997 Ford Expedition 5.4L?
The spark plugs on a 1997 Ford Expedition 5.4L are located on the top of the engine, under the ignition coil covers. To access the spark plugs, you will need to remove the ignition coil covers. Once the ignition coil covers are removed, you will see the spark plugs. They are located in the center of each cylinder head.