Page 367 of 385

10. Reconnect the mass air flow
sensor electrical connector to the
outlet tube. Make sure the locking
tab on the connector is in the
“locked” position (connector shown
from below for clarity).
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.
MOTORCRAFT PART NUMBERS
Component 5.4L 3V V8 engine
Air filter element FA-1883
BatteryBXT-65-650 or BXT-65-750 (if
equipped)
Oil filter FL-820-S
Spark plugs
1
1
For spark plug replacement, see your authorized dealer. Refer to
scheduled maintenance informationfor the appropriate intervals for
changing the spark plugs.
Replace the spark plugs with ones that meet Ford material and
design specifications for your vehicle, such as Motorcraft or
equivalent replacement parts. The customer warranty may be
void for any damage to the engine if such spark plugs are not
used.
Maintenance and Specifications
367
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)
Page 378 of 385

Ford ESP Can Quickly Pay for Itself
One service bill – the cost of parts and labor – can easily exceed the
price of your Ford ESP Service Contract. With Ford ESP, you minimize
your risk for unexpected repair bills and rising repair costs.
Avoid the rising cost of properly maintaining your vehicle!
Ford ESP also offers a Premium Maintenance Plan that covers items that
routinely wear out,like brakes and shocks.
The coverage is prepaid, so you never have to worry about affording
your vehicle maintenance. It covers regular checkups, routine
inspections, preventive care and replacement of items that require
periodic attention fornormal “wear”:
•Wiper blades•Brake pads and linings
•Spark plugs (except
California)•Shock absorbers
•Clutch disc•Belts and hoses
Contact your selling Ford, Lincoln, or Mercury dealership today so they
can customize a Ford Extended Service Plan that fits your driving
lifestyle and budget.
Ford Extended Service Plan
378
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Owners Guide(own2002), 1st Printing
USA(fus)
Page 385 of 385

Spark plugs,
specifications .............367, 371–372
Special notice
utility-type vehicles ....................6
Specification chart,
lubricants ...................................368
Speed control ............................110
Stability system .........................263
Starting a flex fuel vehicle .......257
Starting your vehicle ........254–257
jump starting ..........................313
Steering wheel
controls ....................................112
tilting .........................................99
SYNC..........................................78
T
Third-row power fold seat .......172
Tire Pressure Monitoring
System (TPMS)
Driving .....................................286
Tires, Wheels and Loading ....232
Warning Displays ................12, 26
Tires ...........................217–219, 303
alignment ................................226
care ..........................................222
changing ..........................303, 307
checking the pressure ............222
inflating ...................................220
label .........................................231
replacing ..................................223
rotating ....................................226
safety practices .......................225
sidewall information ...............227
snow tires and chains ............237
spare tire .................................303
terminology .............................219
tire grades ...............................218treadwear ........................218, 222
Towing .......................................244
recreational towing .................253
trailer towing ..........................244
wrecker ....................................319
Transmission .............................272
brake-shift interlock (BSI) ....271
fluid, checking and adding
(automatic) .............................364
fluid, refill capacities ..............368
lubricant specifications ..........368
Turn signal ..................................90
U
Universal garage door
opener ........................................114
USB port ......................................38
V
Vehicle Identification Number
(VIN) ..........................................373
Vehicle loading ..........................237
Ventilating your vehicle ...........258
W
Warning lights (see Lights) .......12
Washer fluid ..............................338
Water, Driving through .............291
Windows
power .......................................104
rear wiper/washer .....................99
Windshield washer fluid and
wipers ..........................................97
checking and adding fluid .....338
liftgate reservoir .....................338
replacing wiper blades ...........339
Wrecker towing .........................319
Index
385
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)