FORD 2009 F-150 v.2 - Manual (Page 389)

AIR FILTER
Refer to scheduled maintenance information for the appropriate
intervals for changing the air filter element.
When changing the air filter element, use only the air filter element
listed. Refer to Motorcraft part numbers in this chapter.
WARNING: To reduce the risk of vehicle damage and/or
personal burn injuries do not start your engine with the air
cleaner removed and do not remove it while the engine is running.
Changing the air filter element
1. Locate the mass air flow sensor
electrical connector on the air outlet
tube. This connector will need to be
unplugged.
2. Reposition the locking clip on the
connector (connector shown from
below for clarity), squeeze the
connector and pull it off of the air
outlet tube.
2009 F-150 (f12)
Owners Guide, 2nd Printing
USA (fus)
Maintenance and Specifications
389