Here is a link and fotos on how to check and replace ball joints. Copy & Paste ; http://flashoffroad.com/Maintenance/FrontEnd/balljoints/balljoints.htm
how to change spark plugs on a 2001 expedition
I believe you can change just the ball joint on the lower control arms , the upper ball joints come with a new control arm
The upper ball joints come with a new control arm , as far as I know you can't just change the balljoint ( if that's what you are asking ? )
change out the bulbs......
replace lower ball joint on ford ranger 2001
According to the 2001 Ford Expedition Owner Guide : With engine oil filter change : ( 6 quarts ) of 5W-20 engine oil
( 6 quarts ) with engine oil filter change
Speed sensor on a 2001 ford expedition
The 2001 Ford Expedition has a V8 engine.
The 2001 Ford Expedition has 16 valves.
r134a for a 2001 Ford Expedition
According to the 2001 Ford Expedition Owner Guide ( 5W-20 ) * with engine oil filter change , 6.0 U.S. quarts of 5W-20 engine oil for the 4.6 and 5.4