Ford 2008 F-150 Owner's Manual page 379

Maintenance and Specifications
2. Pull air filter tray assembly out
toward front of vehicle and lift air
filter element up and out of housing.
The air filter box needs to be free of any debris before installing a new
air filter.
3. Install a new air filter element
into the tray assembly.
4. Return air filter tray to original
position by pressing firmly on the
handle until all rearward movement
stops and secure the two clamps.
Note: Failure to use the correct air filter element may result in severe
engine damage. The customer warranty may be void for any damage to
the engine if the correct air filter element is not used.
379
2008 F-150
Owners Guide (post-2002-fmt)
USA