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•Caterpillar 3126 B engine
Replace the air filter element using the following procedure:
1. Set the parking brake and shift into N (Neutral) (automatic
transmission) or 1 (First) (manual transmission) and turn the engine off.
2. Open the hood. Protect yourself from engine heat.
3. Push in and turn the latches that retain the air filter housing cover
counterclockwise 90 degrees, then carefully remove the cover.
4. Carefully remove the air filter element.Use caution to keep dirt
and debris from falling into the engine.A twisting rocking motion
may be needed to break the seal between the filter element and the filter
housing.
Maintenance and care
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•If your vehicle is equipped
with the 7.3L Power Stroke
engine,it will be necessary to
remove the air filter element from
the filter housing by moving the
exposed end of the filter element
down and to the rear of the
vehicle, then lifting the other end
of the filter element up and out
of the engine compartment.
•If your vehicle is equipped with the Cummins B engine,a
secondary air filter is located the bottom of the air filter housing to
keep dirt and debris from falling into the engine when the air filter
element is being removed. This secondary filter needs to be replaced
only after the primary air filter element has been replaced several
times. If necessary replace the secondary air filter.
5. Reach inside the air filter housing and clean the outlet tube where it
extends into the housing. Be sure not to damage the tube because the
air filter element seals around this surface.
6. Check to be sure that the drain hole in the air filter housing is open
and clear of any dirt and debris.
7. Check to be sure the new air filter element is not damaged, then
install it. Make sure there is a tight seal (apply pressure at the outer rim
of the element, not the flexible center).
8. Align the air filter cover latches with the holes in the air filter housing
and install the cover.
9. Push in on the cover latches, then turn the latches clockwise 90
degrees. Make sure that all air filter cover latches are fully engaged.
Maintenance and care
145
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Fuel filter/water separator
The fuel filter/water separator removes any contaminated particles
and/or water from the fuel before the fuel enters the engine.
The fuel filter/water separator should be drained as recommended in the
Scheduled Maintenance Guide.
Draining the fuel filter/water separator—Caterpillar 3126 B engine
1. With the engine off, open the
drain valve located at the bottom of
the fuel filter/water separator by
turning it counterclockwise.
2. Drain the filter until clear fuel is visible.
3. Turn the drain valve clockwise to close the valve. Do not overtighten
the drain valve as this could cause damage to the fuel filter/water
separator.
Draining the fuel filter/water separator—7.3L Power Stoke engine
1. With the engine off, open the
drain valve located on the side of
the fuel filter/water separator using
your hand.
2. Drain the filter until clear fuel is visible.
3. Close the drain valve completely.
Maintenance and care
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Fuel filter replacement—7.3L Power Stroke engine
The fuel filter/water separator is
located on the right side of the
engine. Replace the fuel filter/water
separator as recommended in the
Scheduled Maintenance Guide, or
sooner if it becomes plugged.
Vehicles operated on fuel with more
than average impurities may require
replacement of the fuel filter more
frequently. The filter has a water
drain valve built into the bottom of
the filter housing.
Removal
1. Remove the fuel filter cap by
turning counterclockwise. The fuel
filter element will come out with the
cap.
2. Remove and discard the bevel gasket. Carefully clean the mating
surfaces.
3. Press in on the fuel filter element locking tabs to separate the element
from the cap.
Maintenance and care
156
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Air cleaner filter .......................142
Air conditioning ..........................21
Audio system (see Radio) .........26
Automatic transmission ............102
Auxiliary power point .................21
Battery .......................................140
jumping a disabled battery ....125
voltage gauge ............................18
Belt minder .................................67
Brakes ................................82,84,87
anti-lock ......................82,83,84,90
anti-lock brake system
(ABS) warning light ............12,83
brake warning light .............10,11
fluid, checking and adding ....131
parking ............................85,87,90
trailer .........................................93
Child safety restraints ................71
child safety belts ......................71
Child safety seats ...................72,73
attaching with tether straps ....75
in front seat ..............................74
in rear seat ................................74
tether anchorage hardware .....76
Cleaning your vehicle ...............164
engine compartment ..............165
exterior ....................................165
exterior lamps .........................166
instrument panel ....................166
instrument panel lens ............167
interior .....................................167
plastic parts ............................166
safety belts ..............................167
washing ....................................164
waxing .....................................164
wheels ......................................165
wiper blades ............................166
Climate control (see Air
conditioning or Heating) ............21
Clock ..................................29,36,45
Clutch ........................................132
fluid ..........................................132Coolant ......................................134
checking and adding ..............134
Cruise control
(see Speed control) ....................51
Customer Assistance ................114
Ford accessories
for your vehicle ......................201
Ford Extended
Service Plan ............................194
Getting assistance outside
the U.S. and Canada ..............200
Getting roadside assistance ...114
Getting the
service you need ....................194
Ordering additional
owner’s literature ...................203
The Dispute
Settlement Board ...................197
Utilizing the Mediation/
Arbitration Program ...............200
Daytime running lamps
(see Lamps) ................................20
Driving under special
conditions
through water .........................112
Emergencies, roadside
jump-starting ..........................125
Emission control system ..........176
Engine
check engine/
service engine soon light .........14
cleaning ...................................165
coolant .....................................134
Engine block heater ...................80
Engine fan .................................136
Engine oil ..................................127
checking and adding ..............127
oil pressure gauge ....................19
recommendations ...................129
Exhaust fumes ............................81
Fuel ............................................151
Index
205