Lincoln Aviator: Maintenance / Changing the Engine Air Filter
WARNING: To reduce the risk of
vehicle damage and personal burn injuries,
do not start your engine with the air
cleaner removed and do not remove it
while the engine is running.
When changing the engine air filter, do not
allow debris or foreign material to enter the
air induction system. Engine components
are susceptible to damage not covered by
the vehicle Warranty.
Change the air filter element at the correct
interval.
Incorrect component use can cause damage
not covered by the vehicle Warranty.
To replace the air filter element do the
following:

- Remove the clips that secure the air filter
housing cover.
- Using a screwdriver, loosen two clamps
on either side of the air filter housing
cover.
- Gently pull the two boots back away from
the air filter housing cover.
- Carefully lift the air filter housing cover.
- Remove the air filter element from the air
filter housing.
- Wipe any dirt or debris from the air filter
housing and cover to make sure no dirt
gets in the engine and that you have a
good seal.
- Install a new air filter element. Be careful
not to crimp the filter element edges
between the air filter housing and cover.
This could cause filter damage and allow
unfiltered air to enter the engine if it is
not properly seated.
- Install the air filter housing cover.
- Engage the clips to secure the air filter
housing cover to the air filter housing.
- Reconnect the two boots on the air filter
housing cover and torque to 3.69 lb.ft
(5 Nm).
WARNING: Do not remove the
coolant reservoir cap when the engine is
on or the cooling system is hot. Wait 10
minutes for the cooling system to cool
down...
Other information:
Check
NOTE:
Refer to the appropriate Section 303-01 for the specification.
Measure the cylinder bore at the top, middle and bottom
of piston ring travel in 2 directions as indicated. Verify the cylinder
bore is within the wear limit. The difference indicates the cylinder
bore taper...
Conserve
Enables efficient driving. It helps to deliver
maximum fuel efficiency and helps to
increase driving range.
Deep Conditions (If Equipped)
For crossing terrain that has deformable
deep, rutted surfaces such as mud, deep
sand or deep snow. Do not use on dry, hard
surfaced roads...