All valve seals

WARNING: This page is about a different car, the 2007 Ford Pickup and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Remove the spark plug. For additional information, refer to ENGINE IGNITION - 5.4L AND 6.8L (3V) article.
Rotate the crankshaft until the piston for the valve being serviced is at the top of its stroke with the intake valve and the exhaust valves closed.

Fig 1: Identifying Special Tool For Removing/Installing Camshaft Roller Followers

Courtesy of FORD MOTOR CO.

CAUTION: If the components are to be reinstalled, they must be installed in the same positions. Mark the components for installation into their original locations.

Using the special tool, compress the valve spring and remove the camshaft roller follower.
Use compressed air in the cylinder being serviced to hold the valves in position.
- Apply a minimum of 965 kPa (140 psi) of compressed air into the cylinder.

Fig 2: Compressing Valve Spring With Special Tool

Courtesy of FORD MOTOR CO.

CAUTION: If air pressure has forced the piston to the bottom of the cylinder, any loss of air pressure will allow the valve to fall into the cylinder. If air pressure must be removed, support the valve prior to removal.

CAUTION: If the components are to be reinstalled, they must be installed in the same positions. Mark the components for installation into their original locations.

NOTE: If a valve drops into the cylinder, remove the cylinder head. For additional information, refer to Cylinder Head in this article.

Using the special tool, compress the valve spring and remove the valve spring retainer keys.
Remove the valve spring retainer, the valve spring and the valve seal.
- Discard the valve seal.
Inspect the components. For additional information, refer to ENGINE SYSTEM - GENERAL INFORMATION article.