Plugs or / and Coil Packs. Auto Zone will check your codes for free and will tell you which plugs or coils are bad. Then replace.
how to change spark plugs on a 2001 expedition
What size motor? no matter, do it while it's cold.
The easiest is through the fender wells. You can even take off the tires to get more room. It is the easiest way I found anways.
Where and how do you find the spark plugs for a 1997 ford expedition?
Yes , it has 8 spark plugs
How to change freeze plugs on 2000 expedition
On a 1998 Ford Expedition : There are ( 8 spark plugs ) for the 4.6 and 5.4 liter V8 engines
for the plugs on the drivers side take out the airbox, the two plugs are easy to change with this removed, as for the otherside, its underneath the car with a long reach socket and small extention, it is a very fiddly job but both can be done with a bit of patience...........
In a 2002 Ford Expedition : For the 4.6 or 5.4 liter V8 engines : (there are 8 spark plugs )
the easiest way is to pull the upper plenium, of course you want to replace the gaskets at this time as well.