WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The valve stem seal must be bottomed on the valve seat.
NOTE:
Make sure that the garter spring is present in the valve stem seal.
Fig 1: Installing New Valve Stem Seals
Courtesy of FORD MOTOR CO.
Using the special tools, install the new valve stem seals.